One of the best ways to improve your SEO strategy is to do keyword research.
As Search Engine Journal said, "Keyword research is the foundation of every SEO strategy, especially when it comes to onsite SEO. Done well, it provides direction for what type of content you should be optimizing for."
Check search volume of keywords to check what people are searching but also to find a lane where there isn't quite as much competition.
Also look how difficult it is to rank for certain keywords and choose ones that aren't too competitive.