Bitcoin mining is a serious business now and we should leave it for those who treat it in that way. Now-a days, mining is not only bad deal for mobile but also for the CPU and GPUs too considering the difficulty and other costs associated with the process.
P.S - Do not considering mobile mining and also stay away from cloud mining because these companies either end up as a scam or loss making entities.
what other coin is best to mine using mobile without causing excessive overheating?
I suggest to don't try it at all. Or you can study phoneum,It's an ico with mobile mining .I don't know if It's good because I'm not interested in it