Same as always: Classic Rock (as in Styx, Deep Purple and so on), Motown (all), Oldies (as in Wipe Out, Paul Revere & The Raiders and so on) and older (but not really old) Country (as in Brooks & Dunn, Diamond Rio, Chris LeDoux, Garth Brooks, George Strait and so on).
I've stated a number of times that the greatest of all human achievement happened between 1685 and 1825. Real musicians (which I am not) will recognize these dates as the birth of J. S. Bach and the death of Ludwig V. Beethoven. I've never been able to listen to “Rock,” not in the 1950 and not now. Other than classical music, I like 1920-30 country music. Try Harry (Haywire) McClintock
Back in the day a song could be recorded by two artists and be a moderate hit for both. As an example in 1954 "Hey There" was recorded by Rosemary Clooney and Sammy Davis jr. Both were on the charts.