[Help] What marketing communities do you actively engage with?

Hi everyone,

We’re looking for beta users for our AI video tool BrewVideo. As it's a tool build for creating product videos and explainers, our primary audience is marketers, especially product marketers at this stage. So I’m looking to connect with marketing communities where they go to share challenges, get help, or stay up to date with trends.

Personally, I rely a lot on podcasts (which don’t help in this case…), LinkedIn through my network, and some Reddit communities like r/growthhacking. But I’d love to expand our reach - what marketing communities do you follow or recommend?

Many thanks!