What are my options for reentry into Thailand after my Tourist Visa?

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There is 60 days stay visa that are multiple entry for 6 months. I think the original idea of "visa run"was to leave within 60 days and come back. Getting a new visa or enter again on except isn't the same

Now, i always like to consider that doing a Visa run, or extrention is as costly as just going to another country and stay there a month.

Not sure why people insists on staying put in one country all the time.... (If you're not working illegally, or trying to "live" there)

I went to Thailand and got my VOA for 30 days then I fly out to Singapore for a cruise then fly back to Thailand to get another 30 days of VOA so I got 60 days in Thailand. I'm not sure if this can be kept on going like this for sure but I think it should work. Just keep flying to neighboring countries then fly back. BTW, it only works when you fly into an international airport to get 30 days VOA. If you travel by land you only get 14 days.

After the 90 days your options are to exit Thailand and apply for another tourist visa at a nearby consulate - there is no technical limit on how many you can get back to back - but at some point either the embassy where you apply or immigration will red flag you and possibly won’t let you enter.

If eligible for visa exempt you can do a border bounce where you step out of Thailand at a convenient border crossing and come straight back in and get stamped for another 30 days (extendable for 30). There is a limit of two per calendar year for that though.

You could also look at getting a education visa for studying Thai or Muay Thai.

Your profile pic doesn’t put you at over 50 so unfortunately your options are limited.