I only know of filters in emulators I’ve used for nes, super nes, Genesis, gb advance, dolphan, duckstation, and whatever other emulators over the years.
None of them have had a crt shader that’s good.
I’m currently toying around with ares (the only fully cycle-accurate SNES emulator) and it has a lovely selection of CRT shaders (that are also available for other emulators). Try out crt-maximus-royale (or the half-res-mode variant). At least to me, the latter looks perfect, with just the right amount of blur, distortion, bloom and scanlines - and it comes with lovely details, like the bezel reflecting the image in real time and speaker grills filling the rest of the screen.
Someone uploaded a gallery with various games to reddit that shows just how versatile this shader is:
https://old.reddit.com/r/RetroArch/comments/1ag834e/while_mega_bezels_is_great_and_all_i_think_the/
