Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How can I find stocks with very active options chains?
If you're willing to shell out some cash, vendors will be quite happy to sell you everything you need. Picking one out of thin air, and no idea if this is a good price or not, the CBOE will sell you EOD data for every option for $40 for one day, and at a discount for multiple days.  Beyond the high/low/close for each contract, you get the volume. Or a month of TAQ data will run your $1550, for what that's worth, which probably isn't a lot for a retail strategy.