Rank Math (free) is very thorough

I’m not an SEO specialist myself, so this plugin is super-helpful to me. I don’t always agree with their opinion on what makes a great title or body text, but I understand these are only guidelines, not The Word handed down from on high.

Overall I am very happy with what the plugin does, and the intuitive way it’s presented. Also,the one question I posted on their support forum has been answered rapidly and clearly, which is not something you can say about all free plugins!