Single board computer arm\mips with full debian support?

Question

Debian

Tell me, please, are there any analogues of rasberi pi on which you can install pure debian?
arm\mips doesn't matter,
as long as no distributions like raspbian, etc. are cheaper than regular x86-64. not suitable, because we will be able to pass the certification of our device only on a clean debian
rasbery 3b + is also not suitable, because. for full-fledged hardware work, installation of packages not included in debian stable is required

Answer 1

this one seems to be not expensive,
but the fact is that I don’t know anything about it at all
Tell me, is this a real computer?

Answer 2

Why a single payer? What is your project? What will the computer do? What characteristics should such a computer have? Memory cpu ram sdd hdd video wifi ethernet?

Answer 3

Here is info on pure Debian.
https://wiki.debian.org/RaspberryPi