LEO is similar to HIVE in certain ways. It's a second-layer token on top of the Hive blockchain. LEO has its own rewards pool, so authors and curators who hold staked LEO (LEO POWER) earn rewards just like they do on Hive. LEO is tradeable on https://leodex.io and a few other exchanges.

If you've got a spare minute, https://leopedia.io/faq has a bunch of answers about LEO and how it works on Hive.

If you create crypto & finance content, then you should consider publishing through https://leofinance.io. This will publish your post to both the Hive blockchain and to the LeoFinance community as well, which makes you eligible for both LEO and HIVE rewards.