I’m not a big fan of those absolute firehoses though. It would be impossible to read as much as they post, and therefore they can’t have much invested or interest in the subjects which is bad for discussion and reminds me of the reasons for disliking AI slop.
I started posting by picking the communuty for the place i live and trying to post local and independent media and special interest groups articles about/in the context of that place.
Its benefits are,
If you look through my history you’ll see my posts to c/Perth/WesternAustralia there are ebbs and flows in interest but the key point is when something happens, say a protest, or a pub banning some nazis the community is there ready for the users, active and established.
If you go to the sidebar of that community, and all the communities i moderate i have gathered in each a host of resources for people to refer to for articles and information in regards each of those communities. It also helps me to have easy access to those publishers as i look for something i find interesting.
So i don’t know what city or State you live in, but if theres a place based server, or a generalist server that hosts a community for it, i’d start posting there. If it looks abandoned maybe jump onto that servers c/meta and request to become the moderator. That’ll give you the ability to change things like the sidebar and participate in managing misbehaviour if/when users post things off topic/against the rules for the community.
See you in fediverse ;)
Edit: oh, also posting is a piece of active fun, instead of waiting passivley for something to entertain you. So its fun in a different way to scrolling feeds, or commenting.
Looks like you’ve got a good community going there. Not sure i have much to contribute, but we do have some crossover with the associated communities.