What marketing channel actually worked for your SaaS?

I’m working on marketing for RunDeskPro, a B2B SaaS product, and honestly every channel sounds “effective” until you try it.

Content, SEO, ads, partnerships, influencers…
Results seem to vary wildly depending on stage and audience.

For those building or marketing SaaS:

• What channel actually moved the needle for you?
• What didn’t work despite the hype?

Would love to learn from real experiences rather than playbooks.