I'll have to go with SDC, BLK, BAY, START (at the moment at least)
SDC and BLK have shown constant growth overtime with no big jump in short period of time. When I invest my hard earned bitcoin I have to make sure that there is no big jump (whether upward or downward I don't care). BAY has been looking solid and it has no whales so it can have great future. It has been fluctuating between 50-100 sat) for last 8 months...so I would consider it a good investment.