Can someone rec some good 3ds games?

I have ss4,pokemon y as well as omega ruby and various mario titles

Thinking about getting Yokai Watch, should I?

I've heard good things of Fire emblem awakening but haven't actually gotten it yet, if you're a fan of turn based strategy/RPGs then I suggest this. I've played some fire emblem games before and they were enjoyable.
Fire emblem fates is one to look out for this year and LOZ link between worlds was pretty good from my experience playing it.

If you're a fan of big swords hitting big monsters, I definitely recommend giving Monster Hunter 4 Ultimate a try.