G: TL;DR: The best Pokémon for Hyper Training (also called IV Maxing with Candy XL at Level 50) in Pokémon GO are those that are PvP- or raid-relevant long-term investments. Focus on:

🔥 Top Hyper Training Targets (2025)

✅ PvE (Raids/DPS)

• Mega Rayquaza – Best overall Flying/Dragon DPS.
• Shadow Mewtwo – Insane neutral damage, widely usable.
• Mega Garchomp – Ground/Dragon dual role; top-tier.
• Mega Lucario – Premier Fighting attacker, also useful in PvP.
• Mega Blaziken – Best Fire DPS (with Blast Burn).
• Shadow Salamence – Comparable to Rayquaza when maxed.
• Shadow Metagross – Steel DPS king (Meteor Mash required).

✅ PvP (Great/Ultra/Master League)

• Registeel – Great/Ultra staple, benefits from maxed IVs.
• Galarian Stunfisk – Dominates Great League.
• Altaria – Great League classic.
• Talonflame – Ultra League threat (Incinerate mandatory).
• Skarmory – Excellent in Great League.
• Azumarill – Great League tank; Hyper Training helps longevity.

✅ Master League-Specific

• Dialga (especially Origin Forme) – Meta-defining.
• Groudon / Primal Groudon – Earthquake or Precipice Blades.
• Kyogre / Primal Kyogre – Water-type staple.
• Zacian (Hero Forme) – Extremely versatile.
• Lugia – Incredible bulk and Sky Attack utility.

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⚠️ Things to Consider Before Hyper Training:

• Candy XL cost is very high — only do it for Pokémon you'll actually use.
• Shadow Pokémon cannot Mega Evolve (yet), but often outperform regular ones.
• IVs matter less in PvP below Master League — a 15/15/15 might be worse than a lower IV due to CP caps.
• Great League Pokémon often prefer bad IVs.

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🧠 Strategic Tip:

If you’re unsure, prioritize Pokémon that serve multiple roles (like Lucario, Garchomp, or Dragonite) or Pokémon you regularly use in PvP or raids.

Let me know if you want a custom priority list based on your roster.