i am looking for an online site where i can ideas of cakes designs and their templates in royal icing does anyone know any
you found it! If you scroll down on the home page you will find a section for templates. I do not know what you are specifically looking for, but I am sure that you will find it here or someone could offer a suggestion on where to look! Welcome!
Are you looking for a site dedicated entirely to r/i decorated cakes?
CC has some r/i decorated cakes by ShirleyW, cakemommy and gefion (in the Lambeth style). I'm sure there are others, but those are the first that came to mind.
Templates can be found here:
Wilton also has templates under pattern locator