What are some interesting crypto protocol governance models that you've seen?

We are working on the initial Meter governance model and would love to learn more about interesting governance models you’ve seen from other protocols.

  1. How do protocols incentivize community members to vote and create proposals?

  2. How do they create fairness and avoid the situation of whales having so much voting power?

  3. Any other interesting aspects about how protocols run their governance?

Your input would be much appreciated!