Having lived in SoCal and Denver each for ~10 years, I've been pretty lucky with my exposure to craft beer over the years. Back in the early 2010s, the Bruery completely changed my perspective on what beer could be. In any history book on craft beer, there should be a chapter dedicated to Patrick Rue, the same way you'd have a chapter on Sierra Nevada Pale Ale and Bourbon County.
Not for nothing, I've been extremely particular in the last 5+ years of not buying any beer that's non-craft, non-independent if I can help it. My mindset is, if you're a great craft brewery and sell out to AB-InBev? Fantastic! Thrilled for the owners, happy they got paid. But I won't support AB-InBev and won't buy that beer anymore. So no more Bourbon County from Goose Island, no more Deschutes Lagunitas IPA, etc. Maybe it's a bit dogmatic, but these giants are actively trying to destroy the industry and I don't want to support it with my money.
There was an app called "Craft Check" that kept a list of which breweries were still deemed Craft and independent by the Brewer's Association definition, but I don't believe the app has been updated in the last couple years. I think Untappd is starting to note which breweries are subsidiaries of the giants now, but not sure how comprehensive it is. If anyone has better resources they know of, I'd be extremely interested.