I am using Adufree DRM Audio Converter , which is the best software designed to remove DRM from Apple music and then convert Apple Music to MP3.
It has pros as below:
1. Remove DRM from purchased Apple Music, iTunes M4P music, , Audible audiobooks, etc.
2. Convert Apple Music Apple Music to plain MP3, M4A, FLAC, etc. with lossless quality.
3. Keep and edit ID3 tags of output audios, including title, album, artist, genre, etc..
4. Convert DRM-protected and DRM-free audio files in batch at up to 30X faster speed.
5. Stream/Transfer/Sync Apple Music to iPod, iPhone and Android