Similar games on either iOS, 3DS, Nintendo Switch or PS Vita that are similar to Final Fantasy 1-6?

PS4 and DS too!

So as much as I love Final Fantasy 7-15, there's just something about Final Fantasy 1-6 that stand out. I absolutely love those games. Are there any games on the mentioned devices that are similar to FF 1-6? The only games that I've played that are similar are Bravely Default (still have to play Bravely Second...is it as good as the first?) and Chrono Trigger.

Also, I'm not a big fan of Dragon Quest. Although I understand it's popularity, DQ is not as "serious" or "thought-provoking". Neither is Pokemon (although I do love Pokemon). Also, I've played Persona 4. Amazing game. I couldn't get into Persona 3 so I just saw the movies and now I'm currently playing Persona 5. They're not like FF 1-6 but I figured I'd mention them since I know someone probably would have recommended that series.

For those of you who have played the following games, how are they?:

• I Am Setsuna

• Radiant Historia

• Bravely Second

Any other games?