Yes, there are several decentralized networks that share similarities with Hive or aim to address similar use cases. Here are a few comparable networks:
EOS: Uses a similar Delegated Proof of Stake (DPoS) consensus mechanism and is designed for decentralized applications.
Steem: The original blockchain that Hive forked from, still operating with similar features but different governance.
Telos: Another DPoS blockchain, forked from EOS, with a focus on decentralized governance and applications.