what should i buy??

it's been a while since i bought my last lego set, i have a few old miencraft sets, the old daily bugle, the spidercycle with the green shield car and almost all the infinity war wave excepting the guardians ship and the set that has captain america. recently my interest in legos returned, and i really want to buy a marvel set, i'm from argentina and the sets are much more expensive than in other countries, so i would be able to buy a big set or a few small sets. what would you recommend me...