Before you do ANYTHING related to SEO, you need to know which keywords people are actually using to search for products and services like yours. I see a lot of people just start churning out content and then try to optimize it later... but it's a lot more effective (both time-wise and cost-wise) to start with a plan and work your way through it. I recommend SEMRush for keyword research, and they have a 7-day free trial you can use to get tons of information about your customers — and your competitors. Once you've collected enough information, then you map out your content marketing plan. What topics are relevant to your business? Which do you think deliver the greatest value to your customers? Start there.