Corner, Dribbler or even Play-maker,
in fact Dribbler is very useful at the Wing. he can turn a match in a different way.
Playmaker give you more rate of successful passe
Corner kick is alway useful.
if i was you Corner is the only choice as you don't have any one. but look at his Passing and crossing stats. if the 2 is better than the other in attacking statas, so go with it.
speed, strength, dribble is needed for a dribbler
Passing is needed for a player maker.