A few quick nominations:
Bewear: A -> A+
Bewear is a god right now, p much nothing switches in; common fighting resists like Dragalge, Mantine, and Galarbro are slower so you can just boost up and claim one with Double-Edge. Bulky offensive teams also love its typing (switch into Knock and Poltergeist) and general defensive utility due to Fluffy. Chople Bewear makes this even better, letting it beat things like +2 Virizion which is super funny.
A+ -> B+ Mostly agree (I'd prefer A-, but B+ works too).
Seconding everything Hot N Cold said, except that I find that teams without Slowbro-Galar aren't as good against Viriz as he implies. Besides Galarbro and Dragalge (which is very prone to getting chipped), there aren't that many options to take on +2 Viriz. It does have the problem of not being able to OHKO much, but can still be a dangerous late-game cleaner against non-Galarbro teams, and they struggle to deal with it in a way better than sacking something and then going to the Scarfer once general walls like Dragalge / Chople Bewear are chipped into range. It helps it that the only common mons faster than it are Scarfers or unable to switch in (see: Barraskewda, Inteleon, Lycanroc; Salazzle ~can~ switch in but it dies to a good prediction and is very frail anyways). However, vs Galarbro, one of the best mons in the tier, you basically play down 5-6 every time; even without it, Viriz needs a decent amount of support to wear down walls into its range.
I'll just say that Inteleon = Barraskewda, imo; Inteleon -> A. Its ability to break through fat teams with the Focus Energy set is something Barra lacks, which makes up for Barraskewda having better coverage with its Choice set (and thus not being walled by Vaporeon as badly as Specs Inteleon is, though its U-turn compensates for that a little.)
Bronzong: A- -> A, imo it is super useful on offensive teams as the best switch-in to Garde, Goodra, Dragalge, and Exploud; Copperajah is a far more shaky answer to them, and while Bronzong has way less offensive presence I find it easier to make up for Bronzong's lack of offensive presence with the rest of my team than to make up for Copperajah's insufficiency as a check to those special wallbreakers.
Exploud: B -> B+ (or A- even honestly!)
Despite having very little defensive utility Exploud is an awesome mon in this meta even outside of webs, its 238/259 Speed lets it outspeed and threaten out tons of opposing Pokemon with an incredibly strong Boomburst, such as Dragalge, Scrafty (though SpDef BU takes one), Golurk, Slowbro-Galar, and (if Timid) Centiskorch and Bewear. Its coverage can break through switch-ins like Jah, Bronzong, Steelix, and Rhyperior, although even Boomburst does a ton. Its bulk really helps; you can get in situations where Exploud threatens out faster Pokemon that are unable to OHKO it due to its impressive HP (for example, Centi's Fire Lash does like 60% max). Really good breaker with a better speed tier than most, deserves to rise.
Lightning Round of ones i dont wanna type out reasoning for:
Drapion prob B -> B+, maybe also Vapo and Arcanine
Xatu and Centiskorch A- -> B+
Lycanroc A -> A-, I find it super super hard to build around and its many weaknesses mean it rarely threatens things out to get a SD off (and it isn't quite strong enough at +0 to KO any mon with respectable bulk).
Bewear: A -> A+Bewear is a god right now, p much nothing switches in; common fighting resists like Dragalge, Mantine, and Galarbro are slower so you can just boost up and claim one with Double-Edge. Bulky offensive teams also love its typing (switch into Knock and Poltergeist) and general defensive utility due to Fluffy. Chople Bewear makes this even better, letting it beat things like +2 Virizion which is super funny.
A+ -> B+ Mostly agree (I'd prefer A-, but B+ works too). Seconding everything Hot N Cold said, except that I find that teams without Slowbro-Galar aren't as good against Viriz as he implies. Besides Galarbro and Dragalge (which is very prone to getting chipped), there aren't that many options to take on +2 Viriz. It does have the problem of not being able to OHKO much, but can still be a dangerous late-game cleaner against non-Galarbro teams, and they struggle to deal with it in a way better than sacking something and then going to the Scarfer once general walls like Dragalge / Chople Bewear are chipped into range. It helps it that the only common mons faster than it are Scarfers or unable to switch in (see: Barraskewda, Inteleon, Lycanroc; Salazzle ~can~ switch in but it dies to a good prediction and is very frail anyways). However, vs Galarbro, one of the best mons in the tier, you basically play down 5-6 every time; even without it, Viriz needs a decent amount of support to wear down walls into its range.
I'll just say that Inteleon = Barraskewda, imo; Inteleon -> A. Its ability to break through fat teams with the Focus Energy set is something Barra lacks, which makes up for Barraskewda having better coverage with its Choice set (and thus not being walled by Vaporeon as badly as Specs Inteleon is, though its U-turn compensates for that a little.) Bronzong: A- -> A, imo it is super useful on offensive teams as the best switch-in to Garde, Goodra, Dragalge, and Exploud; Copperajah is a far more shaky answer to them, and while Bronzong has way less offensive presence I find it easier to make up for Bronzong's lack of offensive presence with the rest of my team than to make up for Copperajah's insufficiency as a check to those special wallbreakers. Exploud: B -> B+ (or A- even honestly!)Despite having very little defensive utility Exploud is an awesome mon in this meta even outside of webs, its 238/259 Speed lets it outspeed and threaten out tons of opposing Pokemon with an incredibly strong Boomburst, such as Dragalge, Scrafty (though SpDef BU takes one), Golurk, Slowbro-Galar, and (if Timid) Centiskorch and Bewear. Its coverage can break through switch-ins like Jah, Bronzong, Steelix, and Rhyperior, although even Boomburst does a ton. Its bulk really helps; you can get in situations where Exploud threatens out faster Pokemon that are unable to OHKO it due to its impressive HP (for example, Centi's Fire Lash does like 60% max). Really good breaker with a better speed tier than most, deserves to rise.
Lightning Round of ones i dont wanna type out reasoning for:
Drapion prob B -> B+, maybe also Vapo and Arcanine
Xatu and Centiskorch A- -> B+
Lycanroc A -> A-, I find it super super hard to build around and its many weaknesses mean it rarely threatens things out to get a SD off (and it isn't quite strong enough at +0 to KO any mon with respectable bulk).
A- -> A or A+
B- -> C
B+ -> A-
Klefki + to A-/ B+
From B to A-
Helio to A or A-
S -> UR 
A -> UR