2 players that are free agents now are Roberto and Tolisso, barca seems to struggle with roberto given their financial situation
i would take roberto any day, versatile as fuck, could play a backup for rodri in CDM, his main position now, can back up walker at RB, can also play in CM
as for tolisso i dont know but i dont think this is something we should instantly rule out, if rags get de jong and leeds are demanding huge money. specially because he's free and low wages, he can play as a 6 (cdm) 8 (cm) and sometimes also plays as 10 (cam)