I think you can easily max friends by just send message at global chat time to time or you can just add friend after multi quest when friend request pop up and I guess having a guild will be helpful
This guy
got everyone but mediena, if you are okay with that please add 1671813109.
ORCA#4315. I don't have Cid. but have lv.99 Ramza and some other couple useful lv.79 units with great VC. join my guild, then we maybe can be friend. in game. id:116533257