i have a ton of success talking to the locals in person, and facebook marketplace. i’ve met up with locals i talked to on airbnb and they almost always want to deal in cash off of the app. also i like to stay in the touristy areas like phuket and pattaya, where they charge me differently based on high/low season. a one year contract can be handy as well
include your website, and tax returns. also deposits in your account via your company. screenshots of the website. even better, you sitting at your computer with a headset on, maybe wear a suit.