New-ish devices compatible with custom ROMs - eviltoast

I am currently using an S9 with /e/OS, and I’m thinking about upgrading next year, since the battery is starting to act up.

Are there any phones released in the past few years that are a decent upgrade and that support a privacy-oriented ROM?

I can go up to 500USD, but I live in a 3rd world country, so Fairphones, Pixels, and some other phones aren’t available here.

Thank you in advance!