Thank you for this post! It is very awesome how helpful you are! I will promote this post for you! Wish you the best! I wrote an article to different kinds of passive Income, maybe it is helpful for you: https://steemit.com/steemit/@markusmichael/uebersicht-ueber-passives-einkommen-durch-blockchain-technologie-deu-or-eng-overview-to-passive-income-via-blockchain-technology