Welcome to the Q&A Forum
Browse the forum for helpful insights and fresh discussions about all things SEO.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
I would optimize for singular if keyword tool indicates more searches for that.
On the other hand I presume search engines become better and better in recognizing singular vs plural and consolidating search results accordingly. So in the long term maybe this wouldn't/shouldn't matter?