help how do i decide which football teams to support...

yo, i'm not a big fan of football but bcs my little brother's been football obssessed for the past few years, i know enough abt it (and enjoy the euros and fifa and the like)
but i'm stuck on whether to support real madrid or barcelona, because madrid has vinicius junior and bellingham, whereas barcelona has lewandowski and yamal (really this whole debate is which 2 players i think are better...)
also it doesn't help all my friends are in love with gavi (barcelona) so really it is a big decision fam
(also i want to buy crappy football stuff in carrefour and the like next time i'm in spain so)
OH ALSO my brother supports madrid so it will cause a familial rift (maybe a plus if he gets annoyed tbh) if i choose barcelona.