I have recently replaced my 3 Logitech Squeezeboxes with 3 Raspberry Pis running piCorePlayer. 2 of them are 3A+s and the other is a 3B.
Raspberry Pi 3A+ with 7″ touch screen and USB powered Logitech speakers.
Raspberry Pi 3A+ with 5″ touch screen, an Adafruit speaker bonnet and speakers.
Raspberry Pi 3B with 7″ touch screen and JustBoom Digi HAT. Digital coaxial output connected to AV receiver.