Word of mouth from brokers and MMs generally You could always just screen tickers for stagnant low revenues and very low trade dollar volume Then just do a quick pacer search or inquiry to the contact at the company There’s a board on ihub here just for R/Ms they probably have some names of people who specialize in reversing into a publicly traded company Hope that helps spec PS - it’s too lengthy to post but a pacer search on Bluefire will uncover a litany of unsavory happenings in their past