I got my friend Peter the Timbuktu Alcatraz backpack for Christmas in customized colors. It was the only one that fit his 17″ computer. Super nice features, and very comfortable.
He also has one of their messenger bags, called Light & Bright or something like that, because it’s reflective and also waterproof. It’s nice too, but he went down one time (rode off the edge of the Holmes Run trail on a rainy, dark night) and his laptop got damaged. He suspects it was because of the way a messenger bag carries a computer kinda diagonally — which prompted thinking about backpacks instead. YMMV.
Timbuktu has more styles than I ever knew until I browsed their website, and they’ll let you customize most of their bags. Which is FUN 😎 plus you can prioritize for colors, waterproofing, reflective features, etc.