I've been using Colota this weekend sending data to a Dawarich server. I like that you can filter out inaccurate GPS readings by setting an accuracy threshold, so this removes any false points that I tend to get with other location apps.
I've tried GPS Logger for Reitti, and the new Android Dawarich app, but so far, Colota seems the best (early days). It has the nicest ui as well.
In terms of what to enter, you need to find out what HA requires for the URL to receive data, then set that in the Colota app. Colota will just store the location data until you set a remote end for it to connect to.