The monster boyfriend trend that was spurred by The Ancient Magus' Bride continued into this year, although now they're getting a little more explicit with the Beauty & the Beast homages than normal, but not with the same level of quality.
SACRIFICAL PRINCESS AND THE KING OF BEASTS (Niehime to Kemono no Ou), by Yu Tomofuji. First published in 2015 and first published in North America in 2018.
PLOT:
From the beginning, Sairiphi was destined to be a sacrifice. Thus, when she is brought before the king of the beastmen, she is both resigned and fearless. The king decides to not immediate eat her, but to keep her by his side. As the two grow to know one another, affection begins to grow between them. Can their blossoming love survive in a world where humans and beasts alike oppose their union?