I see what you mean. The usual way to address this is via marker clustering.
The map doesn't support it yet, but the idea is that when you hover or tap a marker it expands to show a list of all overlapping POIs.
Please, file a request for this feature on our UserVoice portal
if you have minute.
This will help us gauge the overall interest and prioritize.
For the moment I can only suggest offsetting the markers and adding connector lines as shown here:
Link a Kendo UI Map Marker to a location on the map
I hope this helps.
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