Spotify offers a free Google Home Mini with Premium for Family. Multiple accounts. $14.99/month. Available for a limited time with a small-yet-mighty smart speaker.
Note: Premium for up to 6 people residing at the same address for $14.99/mo. One device per primary account holder, while supplies last. Sub-accounts ineligible.
US only. Fulfillment by Google: shipping charges may apply. Offer ends 12/31/18, devices must be redeemed by 1/15/19.