I made a Google Search API (https://rapidapi.com/apigeek/api/google-search3) which I launched at the start of 2020 and made over $6k+ so far. It cost me less than $100/month to run. All I have to do is answer support questions here and there.

I am currently trying to build a standalone website (https://goog.io) and moving the service away from RapidAPI.