How did you grow your newsletter subscribers? I'm still stuck at 130

First, consider changing the name. "Media First Brand" sounds really generic and doesn't explain really what the newsletter is about. Secondly, simply talk about it in more places to drive people to it. Put links to it in forum signatures, post flyers around your area, get in touch with profeasional marketers and their groups who may be interested in reading it, etc. Maybe even invite others to contribute unique material for it too.

I run a newsletter for my startup called 'Media First Brand' where I write case studies on content marketing strategies followed by amazing creators and companies.

I have covered Slack, Harvard University, First Round Capital till now.

I am not sure how and where do I promote this newsletter as such.

Suggestions for growth hacks are welcome!

This is my newsletter link to read and subscribe: mediafirstbrand.substack.com