Beside making certain categories to some domain. Why don’t you create some post type like post-type-domainb and then redirect
domain.com/post-type-domainb to
domanb.com
Please let me know if it doesn’t work.
Beside making certain categories to some domain. Why don’t you create some post type like post-type-domainb and then redirect
domain.com/post-type-domainb to
domanb.com
Please let me know if it doesn’t work.