Consolidating multiple post_save signals with one receiver

You can do that using the @receiver decorator:

from django.dispatch import receiver

@receiver(post_save, sender=Model1)
@receiver(post_save, sender=Model2)
@receiver(post_save, sender=Model3)
def my_signal_handle(sender , **kwargs)
    # some code here

Per the Django documentation on receivers, receivers by default do not need to be connected to a specific sender. So what you're describing is default Django functionality.

In other words, to do this using the @receiver decorator you simply don't specify a sender in the decorator. For example:

@receiver(post_save) # instead of @receiver(post_save, sender=Rebel)
def set_winner(sender, instance=None, created=False, **kwargs):
    list_of_models = ('Rebel', 'Stormtrooper', 'Battleground')
    if sender.__name__ in list_of_models: # this is the dynamic part you want
        if created: # only run when object is first created
            ... set the winner ...

This assumes models that look like:

class Rebel(models.Model):
    ...

class Stormtrooper(models.Model):
    ...

class Battleground(models.Model):
    ...