Seasonic PSUs do not buzz lol. if any PSU has "buzzing/whining" noises then it's faulty.
a pump is not going to draw enough power to make any difference as to what PSU you should/shouldn't buy.
Read through some reviews and pick what fits in your budget. Seasonic Focus/Focus Plus are highly rated but if you're going to ignore that brand entirely because of some loopy logic then there's still a ton of other good options.