I learned basic touch typing from Mavis beacon. It would show you how to place your hands on the keyboard as you type which the bare minimum feature I consider when searching for typing software to recommend. Right now, It doesn't work properly on windows 10 because it is too old.

There is also https://www.typingclub.com/ which is also a good site but it is riddled by ads (removable by paying of course) and requires you to create an account.

I wish if there was an open-source alternative which is either a terminal or web-based version that also shows how to place hands on the keyboard.