I go back and forth when it comes to underwear...
I was very loyal to Evolve Sport Trunks from Target for several years. They are cut shorter than average boxer briefs, but longer than a regular brief. The waistbands are durable and if you pack, they are almost perfect to contain things, imo.
My last batch wore out too bad for daily wear about a year ago and I couldn't find them online. Local Target carries them, but they never have my size in stock.

I also wore boxers sometimes. I like Joe Boxer brand or the novelty kind like DC superheroes, Simpsons, South Park, Spongebob, etc. I used to have a good-sized collection but over the years, they've disappeared or I've thrown them out when they became too worn out.
Lately I've been wearing women's underwear again. Mostly because I have gained weight and none of my guys' underwear really fit anymore. Once I lose weight, I will be going back to guys' underpants.