1- Take a nature walk. It gives you relaxation
2- Listen to nasheeds that don’t have haram music.
3- Choose music that’s soothing but is not considered “entertainment” music.
4- Train yourself to mention God’s name when exercising. After a while you will feel the amazing impact it has on your soul. For instance, keep saying La ilaha illa Allah when exercising. Or here someone recite it like this one:
If you have a doubt, as long as you don’t think it’s entertainment music, then you can listen to it