I have an image, which is a custom map for a fantasy world, and would like to be able to create a zoomable, interactive map with that image as the base, and the ability to add markers on the map.
Something like this: https://genshin-impact-map.appsample.com/#/
I have tried Zoomable, but it is great in terms of making an interactive map, but it doesn't allow adding markers, which is the feature I need (to see information about certain points in the map). I have also read this answer, but it doesn't ask about the interactive part of the map.
I am also not talking about generating a map, as I already have one. I want to make it interactive, and would really like to have that image to be hosted by them as well, if possible.
Is there any such tool?