Prata find out where your niche is active and be involved with them sufficiently to notice you. See if you're allowed to promote your community there, even if it requires (financial) incentive. Then make sure people stay, create a daily discussion with an interesting topic, do events like giveaways, reach out to companies that are active in the same area for long term relationships (to get products for giveaways or who could even end up sponsoring).

There's a lot of information about this topic on the net. I wrote this discussion to list some valuable resources: https://blomstra.community/d/135-feverbees-getting-started-with-community-management

Prata How would I get more users onto the forum without being spammy or invasive?

We try to be public everywhere. To do this, we use our RSS feed and post on our Facebook page with #hashtags. This means that a lot of people come to our Flarum. We do the same on Telegram. If you are not interested, you don't subscribe. So it is not spam ;-) However, if you search for our forum-related words, you will find us. Whether on social media or Google.

Otherwise, it is important to create topics that can be discussed.

As a result, we have almost 2000 users within 1 year. Around 700 are active.

    Steve33 To do this, we use our RSS feed and post on our Facebook page with #hashtags. This means that a lot of people come to our Flarum.

    We do something similar. We use RSS to feed all possible platforms. This brings some users to us who stay. Of course, this requires good content ;-) We have only been here for two years. 2K members, 4.6K discussions, 65.5K posts

      @Prata your site is completely closed. If I didn't know you and what was on offer there, I wouldn't register.

        Prata I think @Yolo is talking about the fact you really can’t see any posts without having to sign up or log in.

          Prata ok so you did have the private facade extension installed? The problem is now you it says you have to signup or login to see the full post.

            ernestdefoe Hm, seems I've enabled too many extensions that hide the forum. Apologies, I'll look into it.

              Prata still says you need to login or signup to read the full post. If there is a setting to show the first post then require someone to login or signup to read the rest of them.

                @Prata people are gonna be less inclined to sign up if they can’t see any actual content and are required to signup in order to see what your site has to offer. That’s just my opinion and how I am when I visit a site. I want to explore the content to see if I actually want to join.