If you don't work online ...
https://www.thaiembassy.com/thailand-visa/dtv-visa-thailand#:~:text=As of July 15%2C 2024,is valid for 5 years.
Thai Soft Power Activities
However, if you do not work online but want this visa anyway, you can still qualify for the Thailand DTV Visa if you plan to engage in “Thai Soft Power” activities. These include:
Muay Thai courses
Thai cooking courses
Sports training
Medical treatment
Seminars
Music festivals
These activities enhance the prestige of Thailand’s culture and improve the country’s standing in the international community. This is why the government will let you acquire a DTV Visa Thailand to help spread the word about how great Thailand is.
Unfortunately, the government has yet to release details on which specific activities are eligible, or which organizations have been approved to conduct activities that qualify for this visa. So, at this point, the easiest way to qualify for the DTV is to be self-employed or work remotely for a foreign company.