Are there any communities similar to Y Combinator or where only entrepreneurs are available that are actually open to join?

I’ve been trying to find active spaces on slack, discord etc where founders and builders hang out (Slack, Discord, private groups, etc.), but it seems like most YC related communities aren’t publicly accessible. Would love to know if there are: YC style communities that are open Founder groups you’ve personally found valuable Or any way to get into more exclusive startup circles Not looking for spammy groups m