To use stock screeners effectively, you first have to define what you looking for. Then you determine what criteria you should use in the screener to find companies that meet your criteria. Review my first three postings on this thread:
Established Companies with Accelerating Growth and Low PEG ratios:
Companies Growing Earnings faster than Revenues and selling
at low P/Es:
Fastest Growing Companies
Many of the old stock screeners that I used to use are gone. Here are a few that you might find useful.
This one is pretty good and seems to have one of the larger databases.
If you can define what you are looking for, I can help you set up one of the stock screeners to identify stocks that meet your criteria.