Technically, Lemuroid supports the 3DS platform. It acts as a frontend that utilizes the core (the now-discontinued open-source 3DS emulator). If you load a .3ds or .cia file into your Lemuroid directory, the game will appear in your library.
But one question keeps popping up in Reddit threads and Discord servers: Can Lemuroid run 3DS ROMs? lemuroid 3ds roms