I also think your target audience is the most important factor you need to consider. What topics are they interested in at the moment? Is there anything that’s currently trending in that community that you can use to your advantage? If you’re unsure how to check this, there are several options you can try. For example, you can keep track of your audience’s interests on different social media platforms or sites, including Twitter, Reddit, Facebook, etc. Alternatively, it’s also a good idea to take a look at what your competitors are doing and how their content is performing with your shared audience.
And as for checking trending topics, you can always lean on Google Trends. It’s free, and it allows you to check the popularity of keywords, niches, or topics within a selected geographical region. Since you’re not that interested in SEO, I don’t think you will need more advanced tools.