If you can awaken him Hyperion is a great first r5 champ. Lots of damage. Good utility. Doesn’t need a ton of sig stones. He’ll be effective all the way to act not that I’d guess you’re close to working on act 6 yet. He can parry/heavy a good chunk of v2 and with Gulk and VTD get you through it for another r5. If not Magik is a great option. Her power control will take you far. She might not be dominant in act 6 but through act 5 she’s great. Do not r5 unawakened AA or Void. Do not rank SymSupreme as your first r5...5th, great but he’s too niche to be your main weapon. Gulk and VTD are great if you’re ok with RNG.