What is the best dating site or app for my friend?

I have a close friend who is 32 and has recently come to terms with an interest in men.He has a strong internalized self loathing and low self esteem. He is frightened of being touched (and of intimacy), but not phobic. He has some medical issues as well. He is not ready for hookup culture...nor, honestly, suited for it.I am hetero and married, so I have no experience with this. Nonetheless, he has asked for help.Does anyone have any advice on what avenues he should pursue?