I’m working to make my plugins compatible with ClassicPress. Mostly this involves some testing as most are probably compatible already.
I want to highlight AdRotate Banner Manager in this post.
A great FREE plugin for all your basic advertising needs and then some - Check it out here: https://ajdg.solutions/product/adrotate-for-wordpress/
If you find any quirks, please let me know through my forum. I’m very keen on providing a good user experience in both WordPress and ClassicPress.
If you’re interested in supporting my work I also have AdRotate Professional available, links for that can be found on my site.