Program for my child to learn to touch type?

[dabdab]

I would like my teen to learn to touch type. She is dyslexic. Does anyone have any to recommend? Free would be ideal!

BBC dance mat is free. Kaz Neurodiverse Typing Tutor isn’t free but is good.

TTRS. Its perfect.

Thank you! Do you think that TTRS would work for a teenager, or is it too 'young'?