Still probably won't work (Clown Loaches are a type of botia). Maybe some of the smaller breeds, but botia/loaches can have tricky requirements. Depending on the type you run into the problems of size, activity, or water requirements.A Botia is the type of fish I was thinking about. Sorry. That might be a good idea.
Kuhli's are about the only common loach breeds I'd suggest for a 10g.
Tiger Barbs are gonna be tricky in there. A bigger group will be needed, but a bigger group would really be pushing it for that tank. They are rather active fish also, so a 10g isn't really ideal. Not that the 3 won't work in there but depending on the personality of the individuals, it could limit what they are willing to live with. I've never had a problem personally with them fin-nipping, but they do have a reputation for doing it a lot.