People who want to become validators have to keep the node running 24x7 and earn more nominations to stand a high chance of becoming a validator. How do you get more nominations? If you have enough FIS tokens, that might be enough, but usually you'll need to convince more people to nominate you. We really hope that validators will have more connections with users in the community. You can consider building a community by yourself, or contacting community members with tokens to nominate you.