I wear briefs for work.
My favorite are "Obviously", it's an Australian company.
They have a very well designed, sizable pouch in the front which makes them super comfortable and a very natural feel.
Kind of like a bra for a man, they support well and don't flatten. Everything slips naturally into the pocket.
I don't like the flatten feeling I get from other briefs.
They are the only brand I wear now, it's been 4 years.
They run about $25 a pair but well worth trying. Much less than my wife spends on bras.
I took a chance on them after trying many other similar briefs.
I own about a dozen now.