There used to be a few international SW broadcasters who used some freqs. in the upper 25mhz area and on AM. Don't know if they're still around but you will have to wait for the advancing next solar cycle which is just recently headed back up from the last bottoming out point. There's a yearly updated book called Passport To Worldband Radio that lists all the stations and their frequencies. I don't know if there's an internet equivalent to that or not.
Then you have 10meter Amateur (ham) Radio repeaters, again hearable if you live near one or when the propogation comes back. They use four channels I believe which are 29.600, 29.620, 29.640 and 29.660. These are on FM.
The simplex AM 10meter ham frequency range is like 29.000 to 29.200 and thereabouts.
good luck