Besides bitcoin, what other block chains do you like?
Cardano?
Raiblocks?
IOTA?
One of the most promising Blockchain in this year is IOTA because is an open-source distributed ledger protocol launched in 2015 that goes ‘beyond blockchain’ through its core invention of the block-less ‘Tangle’. Also the IOTA Tangle is a quantum-resistant Directed Acyclic Graph (DAG), whose digital currency ‘iota’ has a fixed money supply with zero inflationary cost. The goal of IOTA is to improve the issues of blockchain solutions through a transaction validation network that is not subject to PoW/PoI/PoS, while removing scalability issues by actually getting faster as more people use it, not the other way around seen with coins like BTC and ETH. You also don’t have to subsidize miners, so there are no fees on transactions.