You might want to check out Presearch (PRE). You can set up an account and get paid crypto to use a search engine. Currently 0.12 PRE per search. They have invite links like this one: https://presearch.org/signup?rid=2233132 which can help you earn more.
Also you can stake key search words using PRE which basically gives you an ad at the top of their search results. You can use these staked words to drive traffic to your websites or affiliate links.
The other nice thing they have is a chrome extension which I added to Brave so I don't have to actually go to their website to do the searches, it is all automated.
Question, I have a bit of an idea of how the Pi mining works by skimming their website. How much $$$ are typical rewards earned?
RE: Crypto Investment Platforms