Highlight Available Points (through Paywall) in a better and more appealing way

I have created a Map with roundly 900 points and made 170 points avaialble for the public. The free view does not higlight the available points in the proper way. Since it is very clusterized, many free visibel points are hidden and all you can see it is a full of grey locker icons. If a person does not know, it is not easy to find them since they are not displayed properly. They should be more appealing and visible compared to the hidden points to give customers a better idea of the content. Thanks