Plus, Thanos' Infinity Gauntlet looked pretty wrecked at the end of Infinity War after he used it to, ya know, kill half the universe. He might need to go to Nidavellir and make Sad Peter Dinklage give him the original mold.
The remaining Avengers could also do the same, and try to make a competing Infinity Gauntlet of their own to hold the stones once they get them back from Thanos. Or maybe Thor's new axe, Stormbreaker, has the power to hold and wield the Stones. SO MANY POSSIBILITIES.