Theres a more comprehensive list at https://cryptospender.co/ (set language to Thai and country to thailand to see it all), however a lot is shitcoins.

I'm trying to get a good signal to noise ratio (shitcoins being "noise")

Very cool, the list shows local merchants along with which payment network, on-chain or Lightning network ⚡!

- Roses Corner / Burrito Squad, Lightning ⚡
- Signature Seafood & Grill, Lightning ⚡
- Boo bar in the old city, Lightning ⚡/Onchain
- Sababa Israeli Restaurant, Lightning ⚡
- Yellow Coworking & Cafe, Lightning ⚡/Onchain

ClubAlpaca