In recent days, Apple has been reiterating an offer to extend the trial period of Apple Music. This can climb up to 5 months, plenty of time to get an idea of the service and its radios and playlists.
You must use the application Shazam to obtain a button leading to this operation. You will see it either by launching the recognition of a song or by going to the settings screen of the app. This offer is available to non-subscribers and until January 17.
Remember that Amazon proposes to use Amazon Music Unlimited for three months free of charge. The offer is also valid for its service Amazon Music HD, which offers 60 million tracks in lossless audio and a few million tracks in UHD).