What is the best way to create this rocky mountain?

[Kazrarr]

Hi there, I was about to start a project, but I’ve got a problem at the start :
Do you know a way to create this rocky mountain ? (without the castle on it) :

All ideas that come to your mind are welcome

Thks in advance for your answers

[anon18318387]

https://blenderartists.org/t/which-terrain-addon-to-choose/1278984/2?u=ozgur1

[Kazrarr]

thks @anon18318387 !
I’ve completely forgot the ad-don !