Pokemon Let’s GO has introduced 60 different TMs you can find scattered throughout the game. Here’s the full list of Pokemon Let’s Go TMs and how to get them. If you’re looking for Pokemon that can learn a specific TM, please refer to this link (contains raw data mined info and obviously spoilers).
Level 5 of the Silph Co in Saffron City, in the room with the porygon out. (i.e. the room with the door right opposite to the staircases) And on the bottom LEFT corner, stucking right in front of the team rocket lady.
Where to find the Silph Scope in Pokemon Let’s Go The Silph Scope is another classic item from Pokemon games of yore. You’ll likely first hear of it when you reach the eerie Lavender Town and try.
By defeating them, the Grunt will give you the Card Key, which will open any and all doors found throughout Silph Co. With the Card Key, you will have a much easier time finding the correct path to the eleventh floor so you can end Team Rocket's takeover of the Silph Co. Gift Pokemon Lapras: From Businessman On Seventh Floor Trainers Second Floor.
If you have access to the Silph building, then go to the 5th floor of the silph building. At the (screen) bottom of the floor to the right is the card key. Once you have the card key, go to the 3rd floor and in the middle of the floor is a room with a table and no one in it.
Location of Saffron City in the Kanto region. Map of Saffron City. Sitting in the junction of 4 routes in Kanto, Saffron City is a huge city connected to Route 5, Route 6, Route 7 and Route 8.The headquarter of the famous manufacturing company, Silph Co, stands in the middle of this city but it is taken over by Team Rocket. When players first arrived here, Rocket Grunts can be seen blocking.
Heading into the first room directly in front of the stairs, a man will talk about wanting to get a Porygon safely out of the building, keep this in mind for later. Open the door on the west side.