Similar functionalities? There are many. But I think Ada and Atom stands out. I see many of you here support Solana but the problem with them is that they trade decentralisation for speed which is not im a fan of. Ada and atom for me can compete with ETH in the long run as it has the same purpose but different build for sustainability.
atom will explode soon ,this is project actually give us alot airdrop potential for staking. its ecosystem growth massively and market start looking it now. network traffic speed and fee so far be main concern from investors, but they forget about ecosystem building that give them money only by staking. and Atom with cosmos ecosystem give it to us.