There's also good old fashioned networking, too. Find social coders with a similar style to you (and a reasonable audience) that you could be friends with / mesh well with. Try to make friends with them. Try to do streams after their regularly scheduled streams and encourage them to send their active audience along to your channel when they are done for the day. (That's what Twitch Raids are; Twitch built an entire viral networking tool for that.)
With twitch alone it's easy to get lost among the other streamers, and I'm not necessarily going to dig through VODs either.
Putting a condensed version of your stream to a youtube playlist and having links to your twitch will help a lot.
It's not what you want to hear, but it is what I've seen.