Out of the fair few players i've mentioned and with the common sense to realize that a few (De Bruyne etc) are not realistic options sadly even though they should be given the finances of outs and ins, the one i'd see as the perfect signing for us is Defour, still young, desperate for more first team playing time, played in a few different countries and cultures so is adaptable, is still damned young considering how long he seems to have been around at 25, desperate to keep his place in the Belgium world cup squad, assume he has to be on decent terms with both Mirrales and Lukaku given the way the Belgium lads all seem to get along well together, and lastly he has never fulfilled his potential he had as a 19yo when he broke his ankle, you have to figure that under roberto maybe he would start to realise that potential
Combine that with he has only started 6 games with 2 more as a sub in the league for port with like 500 odd minutes played so even in the osman role in the squad he would be obver doubling his time on the field and with Villa being linked by presumably his agent the other weak and for a quoted fee of like 4-5m its very very realistic