Thai language course that provides ed visa

Good morning.

I wish to move to Thailand for an early retirement aged 53 once all this Coronavirus mess is behind us.

Having lived in Thailand previously I found the language very difficult so intend to spend the first few years learning the language properly.

Could anyone recommend a good language school ( will consider anywhere in Thailand) that would be able to supply or provide the paperwork  for an education visa.

Ideally in a non touristy area so that I get total immersion into the language both inside and outside the classroom.

Thank you very much.

Much appreciated Clive