It's a unique game for sure. I grew up playing all of them, except the ones on NES and the Japanese versions. I can put them on my 3DS if I want to, though, as I hacked it a while back.

You really have to be into strategy games, though, and it's nothing like Fire Emblem Warriors, btw. I dislike Fire Emblem Warriors and games like that (e.g., Dragon Quest equivalent or Hyrule Warriors). I find those games kinda boring/dull/repetitive, but lots of people like them, so there is a market for them for sure. I recommend downloading a Fire Emblem demo from the eShop on your 3DS. The only difference between the Fire Emblems on the Switch and 3DS is that the characters are 3D renderings on the Switch, but 2D ("flat") on the 3DS. Otherwise, they play the same (I'm assuming).

What are AWESOME games are Dragon Quest Builders + Dragon Quest Builders 2. It's like Terraria, Minecraft, Starbound, etc. in the sense that you construct things out of blocks, only it has a great storyline. (I hate Minecraft, btw, so it's not quite the same.) I think Dragon Quest Builders has a demo, so you could try that too.