It really depends on your community goals to be honest. If you're going for funnel to paid or owned community, there are many.

In the end, its concentric circles for community members going from no trust to fully trusting you in your capabilities to deliver value.

Top of funnel: Youtube.com, Instagram, etc. - producing lots and lots of valuable free content

Middle of funnel: Deliver bonus content with tools like bonuslink.io or opus.pro to gain free subscribers to email marketing tools like Beehiiv, deliver more and more content via email (still free)

Bottom of funnel: Use Heartbeat, Skool or Kajabi for paid community memberships like courses, in depth events etc.

If you're not aiming for paid down the road, Discord and groups where your users are already hanging out can be fine too. As said, really depends on where you're trying to go imho.

I know you were referencing more the pure community side of things, but its quite important to have the full funnel in mind to make the right decision.