By niche
Food creators
Thailand is one of the strongest food destinations for creators. Bangkok's Chinatown and street stalls, northern dishes such as khao soi in Chiang Mai, and seafood on the Andaman coast give very different stories. Hosted food experiences cover the tastings on the agreed tour; meals outside the plan are personal extras.
Regional differences worth filming
Thai food is regional. Central Thai cooking in Bangkok, northern curries and sausages in Chiang Mai, and southern dishes on the islands are different enough to carry separate episodes. A guide who explains what you are eating makes the content more useful.
Film vendors with permission, buy what you film, and keep out of the way of the wok.