Big box stores aren't generally very privy to carrying highly sought after bonsai cultivars. Good news on the other hand is everything they carry locally is quite likely to be successful in your area, I'd highly suggest experimenting with some material that seems to have the attributes you're looking for. For Crabapple Ive seen Malus sylvestris and spectabilis. Cherries are going to be a much wider category since Prunus extends into apricots and some other obscure pitted fruit, a couple options; Prunus mahaleb, incisa, virginiana, mume, americana, serrulata.