I love to do research and sometimes the best places are the government or proxies that pretend they are the government like the Federal Reserve. Most of us are so focused on the hand puppets that we are shown that we forget to check what the puppeteers are using and doing.
Here is a Saint Louis Fed (FRED) search on Bitcoin. https://research.stlouisfed.org/ssi/search.php?q=bitcoin
There are dates on the side where you can find when the articles were written.
This is really good when you want to educate business or investors or financial advisors. It's also good for those considering ETFs when maybe they do not realize that Uncle Sam's banker fully understands what Bitcoin is, sometimes.