Planning Road Trip Routes with OSM - Best Practices?

Hello everyone,

I'm planning a road trip around Iceland and need advice on the best approach for route planning using OpenStreetMap tools. My main challenges are:

• While tools like BRouter can find routes between stops, I often want to specify particular roads rather than using the automatically computed route. Is there a better way to do this besides adding many intermediate markers? (Also maybe I want to find the fastest/economic route only between certain sections, not for the entire route - how to do that?)

• I need to distinguish between different types of locations: Main stops (overnight/major destinations) Points of Interest (attractions slightly off-route) Waypoints (specific roads/paths I want to take)

Does OSM/BRouter define ways to handle this?

I have an Excel sheet with GPS coordinates for various locations, and I'm using BRouter for visualization. This works but I'm looking for a more efficient way to specify preferred roads between stops and to organize different types of stops/waypoints.

Any recommendations?