Need a good five gallon tank for a betta?

First off I am so happy to hear of someone who is going to spend the extra money on a 5 gallon for their betta. Mine is swimming around happy in his 6 gallon right now. Also, yes you can keep a betta in a coke bottle but it will slowely waste away and die, but you know if you want to be cruel go for it. As for tanks, I'm in love with the new Fluval tanks. The Edge and Chi's aren't great for bettas but I think the new Flora would be an amazing tank. It's a little larger (7.9 gallon) but it's got a mini CO2 for plants and I just think a betta would look really pretty in it. Anyways, hope I could help!