I do not know how, but some faucets still have AdSense today, maybe there are some tricks they know. One faucet owner is said to me that he will not have problems, as long as he uses only their ads.
Still, I'm interested in one thing, if one site is banned from using AdSense in the past, is there a possibility of re-approval?
If your website was banned you cannot re-apply for the same.
What you can do is change the domain name and the create a new email ID related to the domain name. Remove the faucet for the website for now. Stuff it with some 15 to 20 unique articles with minimum word count of 600 words and then re-apply after three months.
Later on after it gets approved you can add the faucet once again with a small adjustment on your website.
If you are interested I can help you with that.
That is correct if your website was banned once you will never be able to get approval next time. Google policy does not say that they will not approve crypto blogs.
But, they are not giving approval easily. If OP can help you with the approval for a small amount then I think anyone who is struggling to get approval on any blog or website should contact him.