I’m big into the SBC gaming world, where increasingly more and more devices are launched with Android as opposed to Linux. My current device is the retroid pocket 3+ which runs android 11 and retails for 150ish. I’ve been using emulators for the past 15 years so I have a hearty collection of roms and along with the fact you can play play store games and stream with it, it’s pretty much the perfect device for me. Retroarch handles everything up until GameCube/PS2 era, then standalone emulators for the rest. 3ds is playable with vulkan and GameCube is too if you downscale. I literally can’t tell the difference between any resolution so it’s perfectly playable for me.
If you’re looking to get into either a dedicated handheld console for emulation or just connecting an Xbox controller to your phone, check out retro game corps on YouTube. He has detailed guides on how to set up every emulator, every handheld, everything you can think in relation to this. If you at all have nostalgia for this kind of stuff, I’d say invest like $100-$200 into one and just go crazy. They’re all seriously great little devices and being able to play all the games you did when you were a kid or just missed out on is awesome.