Microacquire, Flippa, empire flippers etc. The trick with all these sites is that they are mostly noise (99%) as in overpriced deluded sellers OR bad/failing products/businesses. So you have to understand that and work accordingly. There is a reason they are listing their business and only once in a while, you will find a real gem which with some work could really shine (they all need work). I was lucky to find a gem and they def. exist but less than 1% of listings.