Marketing - What's next?

I have been building SaaS products for a few years now, but never focused much on Marketing which ofcourse is a huge mistake.
Its only from April this year I understood its importance. Somethings that I learnt and implemented are -

1. SEO
2. SEM
3. Email Marketing
4. Social Media Ad Campaigns
5. Analyitcs and Reporting
6. Optimization
7. Affiliate Marketing

I find marketing really interesting and that products built for marketing sit on the revenue center side of things for the customer hence lesser friction in adoption.

What are some major day to day marketing problems (automation) that you are facing and solving everyday?

Thanks