Building Watch List For Spreads

Second post in this forum. I am the new guy here trying to get an education. I have a basic knowledge of options but now going back to it from years away from it and just starting over. I am really just studying to find the niche I want to concentrate on, and Andy Crowder's youtube videos on credit spreads intrigue me. Where would you recommend I start to create a watch list of stocks with the intent of looking for spreads? This would strictly be for studying purposes so I'm not just reading articles and books.

And for those who will warn me of the inherent danger, thanks. Seriously. I do not want to be a day trader, and I can't possibly see myself entering any trade for, at least, 6 months. I do not plan to quit my day job and I am not trying to make a living off this. For me, I am looking for something to generate a little income for the retirement account and I am in no hurry.

P.S. - Does anyone have any experience with Andy Crowder of wyattresearch? His subscription service is called Options Advantage.