A list of Cloudflare-compromised domains is being tracked here. You can also use this query tool to lookup websites:

• onion
• clearnet

There is a browser plugin called BMCA which will detect when you click on a link to a Cloudflare service and redirect you to the archive.org mirror of that site so you don’t connect to CF. There’s another plugin that puts a strikethrough on CF URLs so you know before you click if something is CF’d. Those tools along with others are published here:

http://wmj5kiic7b6kjplpbvwadnht2nh2qnkbnqtcv3dyvpqtz7ssbssftxid.onion/dCF/deCloudflare/-/tree/master/tool?ref_type=heads

Search engines have become extremely polluted with Cloudflare sites in the results. There is a search service called Ombrelo that filters out CF sites from the results:

http://ombrelo.im5wixghmfmt7gf7wb4xrgdm6byx2gj26zn47da6nwo7xvybgxnqryid.onion/

W.r.t. a list of CF’s dangers, I don’t know of a paper that covers that as a thesis. A lot of the problems with Cloudflare are documented here and in other documents in that same repo.