Magento 2 - add custum attribute to urlrewrite programmatically

Question

I am trying to regenerate the urlrewrites on magento 2.3.
They are now created by the pruducts name

/artist.html

but i would like to to add some custom attributes.

/astist-title-format.html

to have them unique & to prevent the error:

The value specified in the URL Key field would generate a URL that already exists.

any help would be appreciated!