CRS map using leaflet or any other way

Hi,
I am looking for a CRS map using leaflet

should be able to create a CRS map as in https://leafletjs.com/examples/crs-simple/crs-simple.html
I should be able to add markers
should be able to get the coordinates (x,y) on the image where markers getting added to save into db

Any help or direction on the above requirement would be a great