John Sievers: only issue is that they have a very long rise
Ergowear Maxx if you need room in front and not anywhere else. Budget version is Cockcon; you can see them in my pics.
AussieBum WonderJock & EnlargeIt are good if you need room all over.
Oversized pouches tend to come on 2 general shapes: traffic cone and parachute. It helps to have an idea which might suit you better. For example, my balls are high & tight and make a shelf for my dick to lie on. I need extra room in front but not anywhere else so a traffic cone pouch works best for me. OTOH, of you have a pair of low hangers and a thick 'grower' cock, then a parachute shape will probably be better.
I have a lot of underwear pics up. Take a look and see what you like. A few other guys do as well. Maybe they'll suggest the same.