List of all Technical Machines and their locations in Sword and Shield. Technical Machines will teach a Pokémon a new move. They can be used multiple times, unlike Technical Records, and you can collect all of them through regular game play.
If you’re looking for a list of Technical Records in Sword and Shield, you can find it here (includes a lot of popular moves).
List of Technical Machines
Technical Machines can be found throughout the natural flow of the game.
Data source: Serebii