How to accelerate community building and management?

I would start by improving the network effects of a community. I would start by building feedback loops that require the active participation of members, like contests, lotteries, voting on what to next(DAO), etc. If you want to reach the next level, build a system for the members that recreates solidarity by adapting, for example, a cryptocurrency or NFT collective. The best case scenario is when your members move from the digital space to the real world. You can read more about this concept if you google the Network State.