What is the best way to test whether the end points of a line feature class are connected to another feature or not? I have tried using the various methods of getting dangle points, but what I have tested so far isn't quite what I'm looking for because all of the methods don't allow me to test whether the end points are connected to ANY other type of feature. Specifically, the end points typically should be plugged into a point feature in our data, and I want to be able to run a tool to grab and/or show the end points that are not. I believe most of the other dangle options I have found require that the end point be connected to another line or a polygon, but we need to allow the check to account for points as well.
Methods I have tried:
Feature Vertices To Points
Find Dangles Check (Data Reviewer extension)