FlightAware Discussions

What kind of waypoints/routes (FAA) are used to prepare a flight plan in practice?

I have noticed that FAA provides data delivery service where both waypoints and ATS routes are available to download. By looking at the files, I realize that there are a variety of waypoints and routes. I really want to pick the particular type of waypoint, which are used for pilots to prepare a flight plan in reality. Could you please let me know which types of waypoints/routes are used in practice? For your information, I am attaching the screenshot from which the types are categorized. ATS_Routes Waypoints