There are services out there that help you generate automated leads but through software. You set up your parameters you want to search for, such as 30% ROI and Superdrug. Then hit scan and it will report back with its findings.
However the products it finds can be what I call a “filler” lead. Whereby the ROI and sales are nothing to shout about, but if you have some spare cash lying around it might be better to make some profit, over no profit.