You may want to niche down to something like small businesses. Universities and schools already have LMS solutions that conform to standards and I see no mention of any LMS standards on your site. Small businesses won’t care about that and might be looking at tools for internal training. So focusing on businesses with either growth (lots of hires) or employee churn would make sense to have training systems that can get support or sales people up to speed quickly.
Also some focus on what value it brings would help, making learning fun usually isn’t at the top of the list when people look for these systems. For example, if you emphasized how your small modules can be redone easily later on when that part of training changes and they don’t have to redo an entire course which then saves them money.
I plan to start with educators and small businesses. I already have 20 signup requests and after a little analysis I realised that the most of requests I received exactly from educators and small private schools.
I am planning to try many channels including cold emails, linkedin, google ads, youtube.
Also I already have some organic traffic from google and plan to increase positions.