How to go from 25 daily sign ups -> 100? Any ideas

SaaS marketers and founders, I need help please 🙏✋ Senja is stuck on about 25 daily free sign ups. We haven't identified a marketing channel that scales.

What do you think can be a gear shift for us? To take us from 25 ➡️ 100 sign ups daily. Our biggest current channels are Twitter #buildinpublic, search, and word-of-mouth / powered by.

I asked this question on Twitter and I've included the results here so you can review. Most people are saying to try cold outreach / email? Thoughts?

IHers that have been there, how did you find a channel that worked and really push it?