Once you've finished Awakening, the series only gets better from there. Path of Radiance/Radiant Dawn are peak FE. I highly recommend them if you have a Wii you can hack or a capable laptop.
Pikmin 3 Deluxe
The other routes of Three Houses
Trails in the Sky SC (and the other Trails games as well)
Rune Factory 4 Special
Bug Fables
Ys (one of them anyway, probably Origin since it's on Switch)
Majora's Mask (I'd like to finish it at least once through)
Age of Calamity (picking it up...