How the fuck they decide what is a burner vs a phone owned by people who don't like getting raped by the likes of AT&T is beyond me.
Edit: Per suggestion below, one option is textverified.com. I have verified this works. You can pay with crypto. As little as 75c
Fun fact: they have investors because once the data they have accumulated is worth enough money, the company gets sold to the highest bidder and that's how those investors get their profit. This is standard practice. Stop being so naive, people.
Use IRC.