Just about every breed or mixed breed is friendly. I'd make a list of more then "frendly" being your criteria for picking him/her out.
1. Long or short hair?
2. Daily grooming or occasional grooming?
3. Male or Female?
4. Small (6-8 lbs), Medium (8-12 lbs) or Large (13 + lbs).
5. Particular color or hair type. You have straight, wavey or curly hair types.
6. Active cat that is more people oriented. or a more laid-back quiet cat.
After you answer some of those, then we can help you narrow your list down