Best small constant profits are:
NEO holder - you receive GAS - on Binance monthly
COSS - every Sunday you receive split of 50 % of exchange trades
KCS - simila to COSS, but the bonus decreases in time
ONION - Airdrop every Sunday
Mining - very interesting ICO - Ice Rock Mining - if you invest now with 45 % bonus, you will receive ETH monthly since July - ROI is in 4 months - pretty huge -
https://icerockmining.io/