I normally do the same kind of page where I create several CPT (i.e. team, projects, news) and then create separate templates pages where you can see on the team page the projects associate, the news, etc…

I can´t find any other to do that create a taxonomy called “project taxonomy” so the project is tagged with that taxonomy and so the person who is in charge, the news related and so on…
I´m not an expert developer so I use elementor to help myself doing these templates and dynamic.ooo for the post relations.

This would be solved if I could use CPT as taxonomy and generate easy relations. I saw https://wordpress.org/support/plugin/cpt-onomies/ but it´s not updated apparently and no idea when will it be.

Any idea how to do this via functions.php

Note: this is my first post. Thanks for the kindness if you feel i´m a bit lost.