Thought I'd share a few opinions before the next vote slate based off my mid ladder experiences.
As much of a fan that I am of the Future Sight + Pivot move team model, I have to say this thing has come across as fairly lackluster in my experiences. Plenty of common Pokémon pressure Slowking and don't allow for 2 turns to get the combination off, and it's facing a lot of competition for the bulky water role on teams (though plenty of teams can fit two right now). Even with the benefits of helping against the Water/Fighting types you frequently find on offensive teams I still think a drop would be appropriate for Slowking.
Would Drop.
I am a huge fan of the washing machine. A ground immunity (minus Mold Breaker Exca/Haxorus), and a flying resist is a really nice combination. Has the ability to spread status, and helps form potent VoltTurn cores in the current metagame. Rotom-W also just has a knack for eating that one hit you need it to, and getting off a burn or hitting a strong attack. Also has some flexibility with Trick sets that can be annoying when met, as they're often still run fairly bulky and function the same after a Trick. Would be on board with this getting a rise.
Would Raise.
Sneakily good speed tier, strong setup move, and provides teams with both a Ground and Electric immunity. I think this Pokémon is going to be extremely strong/influential in the next few months. I can understand if it's a bit to early for a rise without many great results yet, but I think this thing is great.
Would Raise.
Really solid mon on hyper offensive teams. With Weavile in the metagame having something that resists both of its stabs and doesn't greatly fear Low Kick is extremely nice. Taunt sets also help in the stall matchup which can be a little tricky for some hyper offensive teams. Also has a bulkier Rapid Spin set that while a bit niche can be beneficial with the correct team.
Would Raise.
I started really getting into UU after Zapdos left the tier. With that in mind I have not seen a metagame where Rhyperior is strong. Every time I have seen this thing it usually gets rocks, gets off one or two strong hits and dies. I can still imagine a few scenarios where this thing is helpful, but a lack of recovery really makes it hard to make this thing last. Especially when it's not outrageously bulky to take on Hyper Offense, and has to contend with Regenerator cores that don't have a ton of trouble outlasting it.
Would drop.
I try my best to not get to caught up in some of the lower rankings as I have found the difference between a B- and B Pokémon is a bit inconsequential, and a bit more subjective. With that in mind I am going to look at these ranks with a bit more of a blanket perspective.
When I look at the viability ranking the biggest drop off in ranks in my eyes is the difference between B+ and B. With B rank being filled with mons that are only useable on certain more rigged structures like Hyper Offense, or the type of mons that are really only good on very specific teams that used the mon as a focal point. These three have enough power and splashability that I would give them the bump. left to right is who I'd recommend the most. Gastrodon is a nice Spiker/Rocker and has access to recovery. Ogerpon is a Pokemon with a solid Tera ability, decent coverage options, and Encore is a cool filler move. Shocks is a nice more offensive rocker and not much can take on its dual STABs, and most of those fear Tera Ice (Hydrapple and Latios).
Would Raise.
Keldeo has enjoyed the shifts from what I can tell, and is doing rather well on Hyper offense as well as Bulky Offense. Having a Pokemon that can switch into some of the tiers Dark Types like Weavile once or twice throughout a game is very nice for Offensive teams, and with the pressure of a super effective priority + a generally strong dual stab option that can hit on both the physical and special side is really cool and can put opponents on the back foot fairly quickly. I honestly wouldn't be mad at seeing Keldeo make a jump to B+. The other two are high performing members for Hyper Offensive teams, and lining up along Teapot seems a bit more appropriate for them in my opinion.
Would Raise.