I highly, highly recommend Polish. There can be some individual variation in temperament, but I find that temperament is highly heritable and breed-specific. Polish are one breed known for being particularly laid back and excellent for families with children or for adults who want an easy-to-handle small breed.
We haven't raised Polish, but they are our preference in pets and 4-H rabbits. We've had a number of them and all are easy keepers.
You may find reputable breeders in your area through the breeder search on the ARBA website. Keep in mind that most reputable breeders won't sell "babies." Rabbits must be at least 8 weeks old to be sold, given away, etc., in most U.S. states. And many breeders prefer to keep them longer and give them more time to adjust to life on their own.
Age isn't usually a factor in whether or not the rabbit will bond with you. Rabbits are prey animals, and I find that they have a natural tendency to be more solitary animals. Although we give each of our rabbits attention every day, many of them would be just as happy (or happier) without the "bother." Others are very social and crave attention. You can think of it just like introverted and extroverted people. Even if a rabbit is friendly and approachable, it may not seek out your love on its own.
Talk to the breeder about the personality you're looking for. He or she should be helpful in knowing what personality traits will best match your desires.
