I was a cute stylish cross body?

I saw this one online at Charlotte Russe, but its in brown & I would rather have black. I also saw a really cute Nine West one, but idk yet. If you can give me websites to look at & some measurements of a good sized one (for powder, lip gloss, lip stick, mini wallet, pens/pencils, keys, etc.), that would be perfect. Thank you ahead of time.