A web-based map using .net6 core MVC to visualize the sensors already exists. So, To increase information density, you may want to think about what else
you want to visualize. A preview of the current and historical sensor. You could embed some plots in the map
or design some glyphs.
Further, as this is a web-based prototype and not some static map, you
may want to think about interactivity a bit more. What can the user
adjust in your solution interactively? adding interactive filters
based on sensor type or a time slider for the historical sensor data.
about interactively comparing data from multiple selected sensors
Bottom line: Think where your solution is better or at least as good as
existing previous work. Check with the domain users what are their needs
in terms of the sensor data.