It really depends on the board that you're on. /g/ imo is one of the best tech forums that I'm aware of, as long as you don't get fixated on the occasional crud

It really depends on the board that you're on. /g/ imo is one of the best tech forums that I'm aware of, as long as you don't get fixated on the occasional crudeness and racism. /pol/ is just racists and incoherent rambling. /tv/ is a good forum for critical takes on media but again requires weeding through the bad parts.