Hi,I suppose the selection field you mentioned is a relational field and in odoo, the default name of model is taken from the field - name(this will be taken as default) or the field that is specified in the _rec_name of the model. Otherwise we can use the name_get function to update the name of the records.

Here's an example of how you can define the default name of a record from a model using name_get function:

class ProfitCenterInherited(models.Model):    
_inherit = 'profit.center'    

def name_get(self):result = []    
for rec in self:result.append((rec.id, '%s - %s' % (rec.short_name,rec.name)))    
return result
To get more information on using name_get function please follow this blog: https://www.cybrosys.com/blog/how-to-use-of-name-get-function-in-odoo

Hope it helps