BOTH.
Pick your topics you love and don't care about the rest. Period!
I always pick my topics/niche and don't care what the first people who run into me think about that. Sure I get influenced. I got to learn how to package it and learn how to use the platform properly. I experiment a lot. But the topics need to be picked by me! Because who are you serving in the first place? Yourself, right? You are doing it for you!
Do what it needs to be done to find your audience but stay true to yourself if you want to find the right audience which resonates with you and your value. Otherwise, you will regret it because you plant the wrong seeds for the quick win.
It is an audience which you are building up. But who are you? Just a random person in the www. Why should I care at first sight? - It takes time and effort. It is a marathon and not a sprint. Plan for that. Have this mindset and do your tiny, tiny steps. Do not do everything and expect everything at once. Do not get exhausted... build up one domino after another... Stick with it and the impact will come.
Networking is another big thing. It is still a social media platform. So it is about connections, too. About growing together, about sharing experiences, about learning from each other... one day truly caring for each other?
At least the ones who will be left. The true ones... the audience, voice and influence you deserve.
Slowly but steady wins the race - Rom wurde nicht an einem Tag gebaut.
I hope you join me in this long, long journey although we are going in completely different directions :D