Not sure what you're looking for.
WWV in Ft. Collins Colorado will ALWAYS be copyable on one or another of it's frequencies (from 2.5 to 20mHz). Which will be loudest will depend on propagation at the time between your location and the transmitter in Colorado. You'll also likely be able to copy WWVH in Honolulu sometimes on some frequencies.
There's no hard and fast rule
about which stations will be loudest at your location. It depends entirely on propagation at the moment you're listening and, of course, on transmitted power from the station. Propagation changes throughout the day. It can change over a period of hours or even minutes. One minute you can't hear a particular station, then the next minute it will be very loud and clear.
To be able to use your radio
effectively, you'll need to learn about radio
propagation, bands and frequencies, nets, etc.
I'd suggest one of the best ways to learn about these is to listen
a lot. Pick a station you can hear pretty well, and listen to it over time. Pick a net and listen over time. Ham nets are very good for this purpose. In particular, the MM Service
Net on 14300 kHz is on much of the day and is good to listen to.
Also, consult the scheduled weather
broadcasts from the USCG, and tune into them.
It may seem daunting at first, but if you begin simply and stick with it you'll learn a lot about using your radio effectively.