The Mistletoe Promise by Lorelei M. Hart

One Kiss. One Promise. The Magic of Christmas.
Omega Everett is ready to be a father. He has a decent job, a nice place to live, and so much love to give. With no delusions of finding the perfect alpha and living happily ever after, he decides to take matters into his own hand—or test tube, anyway—with the help of a fertility clinic. On the day he finally gets the amazing news he’s going to be a father, the rest of his world collapses as his company shuts down.
Everett’s life quickly turns around as he moves to a new city with an amazing new job just as the holiday season begins. Determined to maintain his family’s tradition of going out to eat on Christmas Eve, he heads to a place recommended by his phone, only to find himself arguing with the maître d over getting a table for one.
Alpha Graham’s dating life had somehow been reduced to blind dates set up by his brother, of all people. When his Christmas Eve date cancels at the last minute, he decides to make the most of it, grabbing a drink at the bar of the up-and-coming restaurant—at least until he sees a hot omega being turned away. He can’t let the omega eat alone on Christmas Eve, so he steps in.
Sparks fly between the two and the evening ends with a kiss under the mistletoe, sealing their promise to meet again in a year’s time, when both men might be in a better place to start something more than a hook-up.
The magic of Christmas is sealed with a mistletoe kiss leads the men on a journey to find themselves and their happily ever after.