I'd honestly just recommend the rest of the Final Fantasies on the GBA; they've all aged like a fine wine and if you haven't tried them yet, you should at least give them a go to make up your mind on the definitive version of the games.
Not sure if you're still looking for game recommendations but one often overlooked suggestion is "Rebelstar: Tactical Command". It's basically XCOM for the GBA
Once again I fell down the martial arts rabbit hole and am plumbing the murky depths of the internet's various martial arts and fighting crafts echo chambers.
If you're not actively involved and only get up to speed every few years or so, you can see the tide of public opinion flapping worse than my dong while I'm skipping naked down a hallway.