How should I move on?

So, I'm a game developer (obviously) and I want to let more people know about my progress and game making (as every game developer wants). The problem is that I develop my own game engine and I do not have a specific game idea just yet, so all I do right now is developing my game engine.

How can I start getting a little bit more popular in the community, is there an other option other than Youtube? because I'm not that ready to start a channel nor streaming on Twitch.

Thanks :)