You can use cointraffic or coinzilla for this but if your site is only new I'm afraid if they will approve it, AFAIK these ad network requires more or less 10k visits per month or I guess below 1million alexa rank enable to get accepted.
Except those mentioned you can also try a-ads but I'm guessing it's not profitable using them especially if your website doesn't have enough traffics as they are only base on CPM but at least try for you to observe.

As for adsense, I have crypto blogs with adsense since 2017 and never get any issue from it. So try to establish your website first by publishing quality contents and then try to register once you think you have at least 3-5k monthly visits, not sure with the numbers though but more visits more chance you can be accepted with adsense.