I will give you a Guest Post from High Authority DA 30 Website. (180+ RD - ALL RELATED Content)
The niche is FINANCE - CRYPTO - BUSINESS (no other niche accepted)
Website has really powerful backlinks from sites like finance.yahoo.com, bitcointalk, entrepreneuer, prnewswire, bitcoinist, telegraph, themerkle, bitcoinwiki and much more...
Here are the rules about your Guest Post: