Hinamatsuri, Doukyonin wa Hiza, Tokidoki, Atama no Ue. Recommendations
Both shows deal with the concept of family and learning to love and care for others. While Hinamatsuri doesn't have a cute cat protagonist it really doesn't need one. It surly makes up for the lack of cuteness giving the viewer much more laughs than i personally got from My Roommate is a Cat.
These animes are both great slice of lifes, will make you laugh out loud and have some endearing characters and moments that will pull on your heartstrings too. If you love hinamatsuri you'll definitely love my roommate is a cat :)