OK, I hate to admit it but, I have a thing about men's underwear. I suppose it because I am rather hung, I have perhaps 200 to 300 of them. I am always trying to find the best fit for someone hung like myself but that is comfortable to wear but, also designed to enhance the bulge. So hear are what I consider the top 3 to fit this purpose.
No. 1 ErgoWear EW0792 MAX Modal Boxer Briefs $25
Amazon.com: Customer reviews: ErgoWear EW0792 MAX Modal Boxer Briefs
These are the best. These have a line that lifts the balls in the just right spot for an excellent bulge enhancement but, are a little small if you are over 8 inches soft.
No. 2 Wildmant Men's Stretch Cotton Big Boy Pouch Brief $25
https://www.amazon.com/gp/product/B077P1DLMZ/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
These are also quite good but, with the same basic ball lifting design but, a little too tight for most guy's balls or if over 8 inches soft.
The do make another for the really hung guys. I find the pouch for the cock too big but, the balls just right. This probably for best fit for those wit a true monster cock. Wildmant Stitch Big Boy Pouch Boxer Brief.
https://www.amazon.com/gp/product/B07JM69N66/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
No. 3 Andrew Christian Big Boy Collection
Nearly any of these are pretty good if you are hung, although they keep changing their line up and I think the designed getting worse. I have several of these including a few with Show-it feature which include a band to lift your balls up to enhance the bulge. I however found these bands too constrictive and uncomfortable around my nuts.
This is a link to the Big Boy Collection they have currently.
Sexy Trophy Boy Designer Mens Underwear Collection | Andrew Christian
No. 4 Men's Super Sexy Boxer Briefs - Print 1 Piece Green Blue Dark Gray M L XL
These are some I found on LightInTheBox which is Chinese Company that I found some rather cool shirt from in the past. This particular underwear doe a very good job of bulge enhancement but, come up just a little short on the pouch to hold your cock if you are really hung. These are perfect those about 5 to 7 inches while soft. Some of the shirts here are fabulous, I have at lease 10 or more of these.
[$8.99] Men's Super Sexy Boxer Briefs - Print 1 Piece Green Blue Dark Gray M L XL