Ramac it's a small internet radio player which works very fast and almost does not load the system during playback (less 1% CPU)
At the same time, it is a very convenient desktop client. It allows you to add new radio stations, edit existing or delete it.
Ramac comes with a list of built-in radio stations, but it's just for example, you can add as many stations as you like.
With Family Sharing set up, up to six family members can use this app.