Since you are asking about "Switch 60fps patches," it is important to clarify exactly what these are, where to find them, and the significant technical hurdles involved in making them work.
The original Switch port is a locked 30FPS, matching the original PS3 version, not the 60FPS of PS4/Xbox One. switch 60fps patches
FPSLocker: A homebrew tool (available on GitHub) used to manipulate the graphics API and force custom frame rate targets or refresh rates. Since you are asking about "Switch 60fps patches,"
GBAtemp: The primary hub for the "60 FPS cheats" mega-threads. where to find them