There are a few fish that can make it through the cycle but they will still get very stressed and still have chances of not making it at all. I made the mistake of buying fish before I was cycled and now most of mine are dead. Even the Hardy fish that people at the LFS
around here claim can make it through the cycle have died. Best bet is to do a fishless cycle using shrimp or pure ammonia. Trust me, once your fish start dying from ammonia and nitrites you will wish that you waited on buying the fish. I do.