dont need a right back..you got daniel alves but if you really are desperately in need...try to get rafinha or eboue(not quite sure if he plays RB aswell) or bacary sagna is good aswell. if your looking for a youngster, maybe rafael from man utd
Dani Alves is the best full stop, as much as it pains me to say it Ramos is pretty handy at right back, umm glen johnson will develop into a good player or maybe Corluka of Spurs
corluka wont leave club because he just got there, ramos will not want to leave such an illustrious club, your best choice is to look in :russian first, or romanian first as there is good\young players
antonio Valencia is normally a right winger, but i developed him into a right back... and now his description is World Class Full-Back... honestly, he is quality for me... average of 15 tackles per game... he is INSANE!!!