I would look for a club that actively seeks new members, welcomes new members, and shares information with new members. In any kind of club, or organization, new members are the lifeblood of the future. Without a steady stream of new people, what you have is stagnation.
I would look for a club that has a lot of club tournaments, and a lot of variety in the club tournaments. I would look for a club where the members participate in the club tournaments.
Some clubs even have an online presence away from the game. In other words, they have websites where various activities and communication takes place.