Add the option to install WordPress as a subdirectory (example: domain.com/blog as opposed to a subdomain like blog.domain.com).
This would be an ideal solution for agency owners whose main domain is being powered by GHL but who want to use WordPress to power their blog.
Subdirectory installs are much better for SEO than subdomains because Google views subdomains as completely different sites vs. subdirectory installs which are viewed as being part of the primary domain.
This means that a subdirectory install of WordPress for your blog helps your domain build more authority from an SEO perspective.
Lastly, for agency owners already using a subdomain, you will likely see a massive boost in your SEO if you migrate your subdomain blog to a subdirectory.