Setting default value of TV depending on template selected

I’m going crazy with Wayfinder and getResources filters limitations !!! Aaaaaaa :’(
But I think I found a way around my problem, and to make it easier on the post editors I’d like to know if there’s a way to predefine a TV depending on the template: for example, I’d like to set when the template is NewsTemplate, the TV default value is News, and when the template is ContactPageTemplate, the TV default value is Contact is it possible?

Check out Form Customization and constraints.

You should be able to create a Form Customization rule that sets a TVs default value with a constraint that makes it only apply to certain resources.