NEO pays out in GAS for holding.

XLM and ARK pay out dividends for holding, once you set up your wallets correctly (plenty of online guides).

VEN will also pay out dividends after their upcoming rebrand.

Exchange coins like COSS and KCS pay you a percentage of their exchange fees for holding.

Low risk would be NEO - well established coin, growing partnerships and launches using their blockchain.

Mid risk would be XLM or VEN. Growing coins with big news coming up for both (decentralised exchanges for XLM, rebrand and business parternships for VEN).

Higher risk would be COSS. Small exchange at present, but with growing pairs and fiat introduction on the horizon, could take off.