At the risk of sounding like a fool due to my lack of Gen 8 CAP experience, I think regular SV OU would kill for these 3 CAP spinners and Defoggers:

Astrolotl @ Heavy-Duty Boots
Ability: Regenerator
Tera Type: Ground / Flying
EVs: 36 HP / 252 SpD / 220 Spe
Jolly Nature
- Fire Lash
- Stomping Tantrum
- Defog
- Will-O-Wisp / Heal Bell / Taunt / Encore / Spikes
Gholdengo needs to use Scarf Power Gem or Astrolotl is giving no quarter and then will Defog in the next guy's face:
252 SpA Gholdengo Shadow Ball vs. 36 HP / 252 SpD Astrolotl: 139-165 (37.9 - 45%) -- guaranteed 3HKO
252+ SpA Choice Specs Gholdengo Shadow Ball vs. 36 HP / 252 SpD Astrolotl: 228-268 (62.2 - 73.2%) -- guaranteed 2HKO
252 SpA Gholdengo Power Gem vs. 36 HP / 252 SpD Astrolotl: 186-220 (50.8 - 60.1%) -- guaranteed 2HKO
252+ SpA Choice Specs Gholdengo Power Gem vs. 36 HP / 252 SpD Astrolotl: 304-358 (83 - 97.8%) -- guaranteed 2HKO
0 Atk Astrolotl Fire Lash vs. 0 HP / 4 Def Gholdengo: 192-228 (60.9 - 72.3%) -- guaranteed 2HKO
Trust Astrolotl's ability to switch in and out of play to recover off all that damage it took driving Gholdengo out.
Bonus points for messing with Annihilape's head by outspeeding that ghost monke and threatening Will-O-Wisp, Taunt, and Encore.

Tomohawk @ Leftovers
Ability: Intimidate / Prankster
Tera Type: Steel / Fire
EVs: 4 SpA / 252 SpD / 252 Spe
Timid Nature
- Hurricane
- Heat Wave
- Rapid Spin
- Roost / Focus Blast / Grass Knot
Tomohawk speed ties with Quaquaval and therefore has 1 more base Speed than Gholdengo. Even a bulky set can drive non-Specs and non-Scarf-and-Thunderbolt Gholdengo out pretty well:
252 SpA Gholdengo Shadow Ball vs. 0 HP / 252 SpD Tomohawk: 121-144 (34.4 - 41%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Gholdengo Make It Rain vs. 0 HP / 252 SpD Tomohawk: 183-216 (52.1 - 61.5%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
-1 252 SpA Gholdengo Make It Rain vs. 0 HP / 252 SpD Tomohawk: 121-144 (34.4 - 41%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Gholdengo Thunderbolt vs. 0 HP / 252 SpD Tomohawk: 182-216 (51.8 - 61.5%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
252+ SpA Choice Specs Gholdengo Shadow Ball vs. 0 HP / 252 SpD Tomohawk: 199-235 (56.6 - 66.9%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
252+ SpA Choice Specs Gholdengo Make It Rain vs. 0 HP / 252 SpD Tomohawk: 298-352 (84.9 - 100.2%) -- 6.3% chance to OHKO (81.3% chance to OHKO after Stealth Rock)
4 SpA Tomohawk Heat Wave vs. 0 HP / 4 SpD Gholdengo: 168-198 (53.3 - 62.8%) -- guaranteed 2HKO
4 SpA Tomohawk Heat Wave vs. 252 HP / 4 SpD Gholdengo: 168-198 (44.4 - 52.3%) -- 78.5% chance to 2HKO after Stealth Rock
Tomohawk also forces out most Great Tusk, makes the Stealth Rock/Rapid Spin/Earthquake/Knock Off sets regret staying that way, and even tanks Ice Spinner from most of them as long as it comes in on Great Tusk:
-1 252 Atk Great Tusk Ice Spinner vs. 0 HP / 0 Def Tomohawk: 128-152 (36.4 - 43.3%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
4 SpA Tomohawk Hurricane vs. 252 HP / 0 SpD Great Tusk: 444-524 (102.3 - 120.7%) -- guaranteed OHKO
Iron Treads needs Wild Charge or Zen Headbutt and to be brave enough to switch into Tomohawk (or I guess it can use Choice Band) in order to do much to Tomo before Tomo takes it down:
252 Atk Iron Treads Wild Charge vs. 0 HP / 0 Def Tomohawk: 194-230 (55.2 - 65.5%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
252 Atk Iron Treads Zen Headbutt vs. 0 HP / 0 Def Tomohawk: 172-204 (49 - 58.1%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
4 SpA Tomohawk Heat Wave vs. 0 HP / 4 SpD Iron Treads: 206-244 (64.1 - 76%) -- guaranteed 2HKO
Tomohawk makes sure Annihilape regrets trying to take down its fellow Fighting-type (yes, this Tomo set outspeeds most Annihilapes), although Intimidate is a liability here due to Annihilape's Defiant:
+1 0 Atk Annihilape Drain Punch vs. 0 HP / 0 Def Tomohawk: 75-88 (21.3 - 25%) -- possible 5HKO after Leftovers recovery (8.9 - 10.3% recovered)
+1 0 Atk Annihilape Rage Fist (100 BP) vs. 0 HP / 0 Def Tomohawk: 199-235 (56.6 - 66.9%) -- guaranteed 2HKO after Leftovers recovery
4 SpA Tomohawk Hurricane vs. 252 HP / 236+ SpD Annihilape: 210-248 (49.5 - 58.4%) -- 98.8% chance to 2HKO
You can try ditching Roost for a way to hit Garganacl worth something.

Kitsunoh @ Choice Scarf
Ability: Iron Fist
Tera Type: Flying
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Defog
- Shadow Strike
- Meteor Mash / Close Combat
- U-turn / Trick / Will-O-Wisp
Probably the riskiest of these Defoggers to use since, thanks to losing Poltergeist, it needs chip to take down no-bulk Gholdengo:
252+ Atk Kitsunoh Shadow Strike vs. 0 HP / 0 Def Gholdengo: 254-302 (80.6 - 95.8%) -- 12.5% chance to OHKO after Stealth Rock
Defensive Gholdengo has a poor chance of OHKOing back, though:
0 SpA Gholdengo Shadow Ball vs. 0 HP / 4 SpD Kitsunoh: 266-314 (88.3 - 104.3%) -- 25% chance to OHKO
Kitsunoh can moonlight as a way to revenge Dragapult, especially with chip:
252+ Atk Kitsunoh Shadow Strike vs. 0 HP / 0 Def Dragapult: 312-368 (98.4 - 116%) -- 87.5% chance to OHKO

(why does

not work)
In the meantime, Saharaja can't hit Air Balloon Gholdengo super-effectively unless it opts for 60-BP Thief or a lure Tera Blast and therefore probably loses its spinner role (and its Stealth Rock role) to Great Tusk and Iron Treads all over again unless you
really need the Water Absorb role compression along with the spinning. ...And if you're interested in a Water Absorb Ground-type this round, there's Clodsire. Heal Bell is one heck of a rarity this round, though, and it
juuust might give Saharaja a different niche.