>>58916735>VaporeonProbably RU, maybe UU. It would have a lot more variety in its movesets since it could be a support Pokemon or set up with Calm Mind + Bouncy Bubble to heal itself while slotting in Ice Beam, Scald, Trail Blaze, or Stored Power depending on the meta. It still wouldn't exactly be potent, but its variety would make it hard to handle.
>JolteonUU most likely. a 90 base power SpA that always paralyzes would make it a monster in Gen 9 with Tera Ice. If Tera goes away, it'd probably be NU, RU at best even with Buzzy Buzz
>FlareonIt's not leaving PU. Stats are too shit and it already has great Fire options.
>EspeonNU/RU. It's more of a tech option on Stored Power sets, but you could potentially run it as a bulky support Pokemon that sets up screens, bounces status, and still hits decently hard without investment while setting up Light Screen. The problem is that Dark types are all over the place in lower tiers, and you could have your Light Screen blocked by someone switching in Bisharp or Zoroark or Krookodile or Umbreon or...
>UmbreonUU at best. Baddy Bad is decent, nothing is immune to it unlike all of the above, and Umbreon already has room for another move on its set, but it's not like Umbreon is exactly hard to break for an OU team. UU would have a significantly harder time busting it up, though, but OU is lousy with Fairy and Fighting types.
>LeafeonNU, RU at best. Its stats are okay, but it's got DOGSHIT abilities and a very shallow movepool. Sappy Seed would be a decent upgrade to Leaf Blade, don't get me wrong, but it's still a one trick pony. It has Lilligant syndrome - dangerous Grass type Pokemon that could potentially win games on its own as long as your opponent didn't carry any of the 44.2% of Pokemon that resist Grass type attacks.
>GlaceonPU, perhaps even worse than Flareon. No, Haze on a decent Ice type attack is not enough to make Glaceon worth using. Ice is the worst type in the game and its stats are shit to boot