Network; network, network. Get known outside your stream. Discord and twitter are very good platforms for that. There are several hashtags on twitter and multiple discord servers for content creators which are highly moderated. This blog and the OPs discord has helped me a lot: https://medium.com/@jomosenpai/a-growth-hackers-guide-to-gro... there is also the subreddit /r/twitch_startup... avoid /r/twitchstreams at all cost. No moderation there

Visibility. Dota and the likes have a large audience and are very easy to stream. Take a twist on it, or stream something else so you are easier to find.

Stream quality and viewer interaction. Talk to your chat and say their names as often as possible. In addition to that, have fancy overlays, a good cam and a good mic.