Playing scanned audio discs on other devices?

I've purchased some albums from the iTunes Store, but I also scanned several hundred music CDs onto my MacBook Pro (running on High Sierra version 10.12.3). To replace all of them with downloaded digital albums would be prohibitively expensive, and some of them aren't available in digital format. So I have two questions: 1) Since the only home speakers I've seen advertised that connect wirelessly to any Apple devices seem to be designed only for iOS devices rather than OS-X devices, is there any way that I can run my old CD music off the MacBook rather than resorting to my old CD player to hear my music at home; and 2) is there a way to get those scanned CD albums into the iTunes app on my iPhone (running on iOS 11.2.6) so that I can listen to them while on the go?