@Vinny ******
Correct... you could fly to Ho Chi Minh City Vietnam first and seek the Tourist Visa from the Thai Consulate there. They are friendly to work with...but read the visa requirements very carefully.
Then enter Bangkok by air from Vietnam...
Followed by a visa run by land border crossing to Vientiane Laos to obtain a second tourist visa IF you choose.
Giving you up to 6 months stay.