Our community called steemsilvergold consists of silver and gold stackers and we combine steeempower (delegated max 2500 for gold level) in a community bot who in turn gives juicy daily upvotes to members. Four members have the keys. Extra steem income is used to lease more SP. The ROI (return) annually is now some 50% on your delegation. An example for other teems or groups with a shared hobby.
Just delegating SP to a bot gives 17% passive income which is good as well given the 8% steem inflation per annum.