I use Taste of the Wild Pacific Stream for my 4 bullies and it works well. You can't get it at Pestmart or Petco but it should be available at locally owned stores and Pet Supermarket. Our local Tractor Supply also carries it. However I do get mine shipped in (no bag to carry) Amazon has it with free shipping over $25.00, Petflo and Chewy.com have it - free shipping over $50.00. I also use that brand of cat food so meeting the $50.00 for shipping is no problem. You can always order 2 bags at a time too. The price from on line stores is no more than local.
A lot of folks like Blue Buffalo as well which should be easily available. If you read, you'll see which varieties. what ever brand you choose the general consensus is to go grain free and if you get loose stool too much protein might be the culprit.
since you're feeding a Pug as well, I would suggest a lower amount of protein - maybe in the 25% range. That's what's recommended for my smaller bullies at any rate. Too much = more hyper dog I'm told. Good luck and enjoy your pup.