The Time Stone. Duh.

Reality Stone for sure

The darkhold!

Jk, jk 😂. I would probably want Sam’s falcon wings or T’Challa Black Panther suit.

The Yaka Arrow and Stormbreaker/Mjolnir

Mark 42 suit and Coulson's hologram shield

Either Stormbreaker or Yondu’s arrow (forgot it’s name). Time Stone would also be pretty cool

Peter's Stark Suit, I need dem webshootersssssssss (also all the epic stark tech in that suit)

The completed Infinity Gauntlet.

Definitely the complete Infinity Gauntlet or Nano Gauntlet, though I definitely would never actually put the gauntlet on because I value my life. Rather, I would take a certain Stone out of the Gauntlet whenever I need it, and put it back once I'm done with it. I would probably use the Time Stone the most, since I would probably want to revise my mistakes as much as possible. However, I would always use gloves when I take a stone out of the gauntlet in case the stones burn my hands, and I never would even attempt to use the Power Stone.