What are the best visa options for living in Thailand as an online teacher?

Hi and thanks for letting me be here :)

I've always wanted to finally end up living in Thailand or somewhere else in SE Asia after spending decades living in Hong Kong (I can still live there too). I'm just so confused as to how to do this based on my life situation. In a nutshell (from UK and now living here ) I have a home to sell eventually if it came to that ( or rent out while im checking Thailand out). I will continue working (online teacher) and I receive alimony monthly (if that matters lol).

Im not sure which route to take 🤔. Could anyone spell it out for me in simple terms please as to the best way to make this happen :) thanks 😊 🙏