This is a list of the most accurate emulators for each console

NES - Mesen
SNES - higan
N64 - Mupen64Plus
GameCube - Dolphin
Wii - Dolphin
Wii U - Cemu
Switch - yuzu

Game Boy - SameBoy
Game Boy Color - SameBoy
Game Boy Advance - mGBA
Nintendo DS - melonDS
Nintendo 3DS - Citra

Playstation - Duckstation
PlayStation 2 - PCSX2
PlayStation 3 - RPCS3

PSP - PPSSPP
PS Vita - Vita3K

Genesis - BlastEm
Mega CD - Genesis Plus GX
Saturn - Kronos
Dreamcast - Flycast