I want a solo mining like #BitAxe but I need it to be quiet, I’m confused with all the options out there in terms of mining capacity, noise and cooling options, can anyone recommend a simple comparison ?

It might not actually be a good idea, because the block reward falls exponentially, and then the extra hash goes into the rental pool, where the bad guys can buy it.

bitaxe is quiet with a noctua cooler

Is there anyway to purchase them for an Iranian citizen? Or it must be under some consideration because of us embargos?

A way for space heating in the winter ^^