dont be afraid to use any of these, the OWB mod doesnt use any of these... for some odd reason.

these are the most liked tracks from Fallout 1, 2, and tactics.

https://www.youtube.com/watch?v=r6qt_70iGk4

https://youtu.be/EaRiY7WkMhw?list=PLOJyW97d5rB235R1R5W_tWpLdNk-l9G52&t=2

https://youtu.be/dn3UDyLf9-A?list=PLOJyW97d5rB235R1R5W_tWpLdNk-l9G52&t=3

https://youtu.be/XZctTNwrjHA?list=PLOJyW97d5rB235R1R5W_tWpLdNk-l9G52&t=2

https://youtu.be/VlSPkJ0zy7M?list=PLOJyW97d5rB235R1R5W_tWpLdNk-l9G52&t=1

the entire list is here:
https://www.youtube.com/watch?v=UkoA2iC7LCU&list=PLOJyW97d5rB235R1R5W_tWpLdNk-l9G52&index=1

Keep in mind that the Fallout BGM is designed for tone and setting. not 'just something to listen to'. its what makes it unique, to help form the situation and put weight on what has happen or what it currently is.