VB-Audio Virtual Cable - Connect Audio Applications together with a Virtual Audio Device
Leawo Music Recorder - Leawo Music Recorder is a superb but easy-to-use music recording software program that lets you record free music from any built-in input audio, computer audio and online music sources, like YouTube, Spotify, AOL Music, Last.fm, etc.
SoundDesk Virtual Devices by LoudLab - SoundDesk Virtual Devices - Software devices to route audio across macOS.
Audio Record Wizard - How to record streaming audio with the streaming audio recorder - Audio Record Wizard.
vsound - Vsound a virtual audio loopback cable - Vsound is an application which allows you to digitally record the output of another program such as RealPlayer.
SoundTap - Download SoundTap Streaming Audio Recording Software Free to record live audio, streaming music, internet radio easily in perfect pure digital on PC and Mac.