If you are searching for them to play pirated games, you will find no help here—only a reminder that respecting intellectual property and developer effort is what keeps the homebrew community alive and ethical.
When you emulate Nintendo Switch games on platforms like Ryujinx or various Android emulators, you need two distinct types of system files extracted from a physical console: prod keys v2101
If you need to purchase a product key, you can: If you are searching for them to play