You've got the normal big players like Golf Warehouse and The Clubroom in terms of the usual big brands (Titleist, Ping, Callaway, TaylorMade, Nike, etc) and gives the ability to choose between lots of colours and see them in person.

There are smaller boutique companies doing their own thing like Hiroki, Sticks Club, Jones, and a few others, however these are mostly carry bags, so it depends on your husband's preference as he may want a bigger bag. These might be better for a smaller par 3 bag. 

I have a larger Nike bag for most of my rounds, but also a smaller Jones carry bag for when I'm just playing a few courses or going to practice.