Increasing marker size based on number of points at same location in QGIS

I have a dataset that contains many points (representing specimens) with GPS locations taken at the same point. When I map these points as a vector layer, only the uppermost point shows - so, at one given location, for example, there could be 50 data points yet it looks exactly the same as a location that may have just 1 data point.

I am wondering if there is a way to increase the marker size relatively to show this abundance of points at the same location using QGIS? I have tried to use the point displacement tool but I am not looking for the result that this gives with a centroid and a ring of points surrounding. I basically want to create a buffer that has a size in accordance with the number of points at that same lat long to show the relative abundance of specimens at that point.