Commodore 64:
Vice is still the best option, for accuracy and convenience.
You should just add a note to use jiffy dos since the criginal commodore is way too slow. Linking any files would get you the attention of the eye of Infinitron.
Avoid retroarch cores.
Amiga:
Fs-Uae should get the convenience tag and winuae the accuracy tag.
Also, retroarch PUAE core is pretty good and is getting updated. So maybe add that to the convenience bin as well.
Should also leave a note saying that WHDLOAD is for convenience and adf/installing is accuracy.
Atari XL
Change the name to Atari 8 bit, the xl was a very specific line.
Atari 800-Accuracy
Altirra -Convenience
Avoid retroarch cores.
Atari ST
Hatari-Accuracy
Steem -Convenience
Avoid retroarch cores.
NES:
Messen for both. No reason to have nestopia, both are cycle accurate.
Retroarch alternative would be Nestopia, the Messen core is not the same.
SNES:
Ares -Accuracy. Developed by the former guy who made bsnes.
snes9x-Convenience
Retroarch alternative would be any variation of BSNES or snes9x. Snes9x core is perfectly comparable to the standalone.
N64:
Oh boy, here we go:
RMG,simple64, -Convenience but with a big problem. All n64 emulators minus Ares are plugin dependent and that creates its own problems, but these two are made to be as simple as possible.
mupen64plus is in a weird spot where it does both but not good enough to be considered the defacto emulator
Ares-Accuracy. Pretty good for a couple for years of development a a dev switch. No hacks whatsoever.
Gamecube-WII:
The only choice is Dolphin still.
Avoid retroarch core.
WII-U:
Cemu is still the only option. It has gone open source so you can get the newest build here:
https://github.com/cemu-project/Cemu/releases
SWITCH:
Yuzu is going to jail,
. Convenience tag, they practically use every trick in the book to make AMD gpu's run the thing normally on Windows.
Ryujinx-Accuracy
Gameboy-Color:
Sameboy-Accuracy
Gambette is only active on Retroarch and i don't think theres are any emulator that qualifies as Convenience for this handheld since there isn't a lot you need.
GBA:
Mgba is still the best option but you are gonna need vba-m for some romhacks.
Mgba retroarch is fine.
DS:
Melonds for both. Desmume is a joke now.Especially since melonds now allows for dsi emulation.
Retroarch core is decent but forget about dsi stuff.
3DS:
Citra is still the only option.
Avoid the retroarch cores like the plague.
Master system-Genesis-CD-32x:
Genesis plus GX retroarch core is still the best.
Kega Fusion deserves the old tag, it still works with great compatibility.
SATURN:
Forget about the saturn beetle retroarch core.
Mednafen-Accuracy, the only accurate Saturn emu.
Kronos standalone and retroarch core are pretty good and should get the Convenience tag.
DREAMCAST:
Demul should be removed.
Flycast, both standalone and retroarch core is all you need.
Redream is free emulator that would get the Convenience tag if you didn't have to buy the emulator to unlock said features.
Nec consoles:
Mednafen standalone is better then the cores.
But, the cores are not so bad compared to other consoles and can be used without any problems.
PSX:
Mednafen standalone-Accuracy
Duckstation standalone- Convenience
I think Xebra deserves to be on the list for the old tag. It is worse than the other two but, it feels so vintage, in a good way.
Avoid retroarch cores.But if you must use one, use Rearmed.
PS2:
Pcsx2 is still the only one, unfortunately.
Avoid retroarch cores.
PS3:
Rpcs3 is still the only one.
PSP
PPSPPP is still the only one worth it.
Retroarch core is not.
VITA:
Vita 3k is still the only one.
XBOX:
Xemu remains the only choice. CXBX has not caught up, in fact i think they even regressed in some games somehow.
XBOX 360:
Xenia is still here, still annoying to use, still completely random in whatever anything will work. Especially in the audio department.
I do give them credit in making Lost odyssey somewhat playable for a week until newer builds made sure that changed.