Believe me, I have tried every shortcut there is (and spent a lot of time and money on it) They all failed before they even got to a Google update, because the business model was bad. I wasn't doing anything that someone else wasn't already doing better. There was no reason for those sites to succeed with Google or with users. One day I actually wrote down all my various projects I'd tried in two columns - wins and losses. There were two wins, and over a dozen losses. That's when I started selling off sites and domains like crazy.
I found it actually takes more money, time, effort and stress to keep a bunch of churn and burn, shallow, or fad-themed sites up and running than it does to to maintain one or two good (and evergreen) ones. For me, anyway.
Wish I'd realized it about ten years earlier, but if wishes were horses then beggars might ride.