Hi, Can you please tell me the which type of altcoins we should buy. Like:- which has already product established or having a strong development or backed by someone very powerful(big companies) or whose idea is best or any other reason which we should consider while buying the coin?
I would definitely buy some popular and stable coins in the begging. I suggest: Bitcoin, Ethereum and NEO. And will combine it with some coins that are still developing like TRON. Cardano is good option and Ripple as well.