hmm.. why dont you research a bit urself? but, there is a site which can provide you a list and that is adsblacklist.com I am not recommending using it.
I used adsblacklist.com but after a while I removed the list they provided to me and I blacklisted mfa sites manually, much better results, adsblacklist won't filter all mfa sites for you
Since the MFA's are topic related we can't really help you with this one. You will have to find out what the MFA's are in your topic area.