Here’s a great resource that shows a large selection of aquarium types back to back for easy comparison. It can be found on NorthSide Aquatics website.
There is also a site for commonly available stands – here.
The site also lists aquarium and stand dimensions, so you can easily match a tank and stand, or order something to match what you already have. You can also use this page to figure out how many gallons your aquarium is.
If you live in Arkansas, and can come get the tank, it’s a great way to shop for a new tank. They don’t ship, however; so if you live further away, print out the picture and take it to your local fish store.