@thiouneamet202
Sir, I can share the code to change the logo or background color of wordpress login only.
There are plugins available in the market as well as you can find the code snippets on google as well
Your requirement is this:
I want to change the page model to have a personalized page . What are the plugin available to doing this job.
For a personalized page it will be better if you will use any plugin because I have no idea what kind of page you are looking for