I have a pair of slip on shoes that I have been eyeing recently. The brand is Olukai and they have a variety of styles and colors. They are available at the Dollar Store and online. I am not sure about the quality of the sandals, but I do think they are worth looking at and they are fairly affordable.
The brands are all different in the US, so it’s hard to find one that is right for you, but I think that, if you look closely, you will see that they are all different styles of the same size and color. I can’t say anything else about them, so you’ll just have to try them on for yourself.