Hi @RK-REZA
if you want to upload a local storage image or an image uploaded in a server, you can simply pass the URL of image in source code here; https://prnt.sc/relweh.
Or if you want to directly upload an image just by clicking on single icon, you can take a reference from the below links;
https://www.codeinhouse.com/install-tinymce-laravel-and-responsive-file-manager/
https://medium.com/@petehouston/easy-way-to-upload-image-to-tinymce-in-laravel-f34da8cab78c