Finally! I've been waiting forever to answer this question! I actually have two OTP. The first one is GaLe the second being YuutaxRikka, I don't know if they have a pairing name or not. Both of them are just so cute that it's nearly impossible to pick! Kiss already! (even though GaLe had a kiss in a vision and then that underwater scene) It counted. It totally counted.
Other Couples I Like:
NaLu - not cannon yet. I don't think. It's cute, but at still don't hate on NaLi shippers.
GrUvia - he likes her back. Argument is invalid.
JeRza- Adorable and dang it Jellal you aren't engaged.
Cappy - cute
SoMa - I don't understand where KidxMaka comes from. I'll stand by this weapon and meister pairing.
SteinxMarie - Just read the manga. Either way I ship it. We must protect for the future generation.
NibutanixDekomori - The Christmas episode. First Yuri ship.
OtanashixKanade: The feels... oh my god.
HinataxYurippe - I read the manga first.
HinataxYui - I still like that one though.
MaouxEmi - She's into him. He's just a clueless devil.
LuciferxSazuno - Don't know why. Just ship it.
KiritoxAsuna - I ship it, but at times I find their relationship too perfect.
LeafaxRecon - She can't be shipped with her cousin.
CinquexEclair - I like it better than the main ship in Dog Days.
GaulxNanami - Another I don't know why I ship it. I just find it cute.