I only played Bravely Second, Fire Emblem Fates (All three version) and Fire Emblem Awakening(Beat it for the 3rd time) for my 3DS. I also picked up Metroid 2 (The gameboy one) as well.
Out of the games I played I recommend the Fire Emblem games and Bravely Second (But please do play the 1st one before this. ). Those games are awesome if you are into Turned Based RPGs. The Bravely games are basically old styled Final Fantasy games. Metroid 2 was fun however I do not think most gamers can stomach the oldness of this game. If you can enjoy Metroid 1 then you can enjoy Metroid 2.
Also do not ask me why I chose Metroid 2 over its remake. Such questions do not have answers!