I started staking Solana today. It's not easy or intuitive as one might think: you need to pick a validator, which there are many, to stake with. How do you pick a validator? There are many attributes such as voting, uptime, commission rate, etc. A website that is useful is Solana Beach (https://solanabeach.io/validators) which ranks the validators based on a "score" -- the top 20 are blanked out because the website wants new users to stake with others to reduce the reliance on a few validators.
That is how I stumbled upon the Nakamoto Coefficient which is a measurement of how decentralized a crypto is relative to the total number of miners / validators.
This website has a great summary of it.
What is the Nakamoto Coefficient?
As the wave of adoption in decentralized blockchains continues, it is important we pay attention to how decentralized these blockchains are. One metric to gauge the decentralized nature of a blockchain would be the Nakamoto Coefficient. The Nakamoto Coefficient represents the number of validators (nodes) that would have to collude together to successfully slow down or block any respective blockchain from functioning properly. The higher the Nakamoto Coefficient relative to the total number of validators, the lower the risk of collusion disrupting a decentralized blockchain.