-FATEs are still ok-ish to level in. If you liked doing them before, you don't really have to stop now. Just keep in mind they're a bit tougher since you'll likely be solo or very few people

-Leves are a quick source of exp, believe it or not

-Guildhests

-Dungeons

-Take a look at your challenge log (the quest to unlock it is in Limsa Lominsa in the Drowning Wench from a Miqo waitress). You can get lots of exp and money from doing things you'd normally be doing anyway!