Books like The billionaire's passion by Robyn Donald

Royal princess Serina is drawn into a glamorous, yet perilous romance with billionaire Alex Matthew, who has tasked him with watching her brother—only to fall in love himself and blur the line between duty and desire.

A clever and dangerous spy romance, where the Byron brothers' code battles the French secret agent who wants to be a man and woman’s love, while also saving his family and breaking into the most powerful codes of the time.

When Alex Hunt must quickly secure a wife for his father’s challenge, he meets P.J. Kinkaid, a decisive businesswoman who sees no love in her new hire—until the truth of his identity—and a secret of her own complicate a fast‑paced romance.

A reporter turns to a reclusive journalist for protection, forming an unlikely marriage against a backdrop of secret identities and dangerous threats.

Suzanne Brockmann’s "Born to Darkness" is a fiction thriller that examines the intersection of U.S. special forces, drug–control efforts and cartel power struggles, while delving into hormonal influences and man‑woman dynamics.

Claim and Protect is a contemporary romance novel by Rhenna Morgan, exploring the intricacies of modern man‑woman relationships.

"Born out of wedlock to a former Mennonite girl, Mary Penner lived on the edge of society until the day her mother was killed in a drug bust. Sent back to her grandparents at age fourteen, she found fitting in with their simple society very difficult. As an adult now, she enjoys the security and peace her faith gives her - even if the people still hold grudges against her and whisper about the notorious shunning of her mother. Abe Glick has been fascinated with Mary since the first day she walked into his life. Different from the rest of the girls, she captured his imagination and his heart. But capturing her heart will be a difficult task since Mary keeps it locked up tight, hidden behind walls of self-imposed guilt and pain. When her past confronts her, will her world come tumbling down, or will she finally see herself free?" -- Cover verso.

A steamy romance where a New York private investigator encounters a demon—fashion, demonology, and man‑woman dynamics collide in this hot, contemporary fiction.

Why was this so boring...

"In the whole state of Montana, there's nowhere to hide. Laurel Hodges has changed her identity twice. She's been on the run for the past four years, trying to outdistance the men who blame her for the death of one of their own. She's finally found the peace and stability she needs, for herself and her two children, in the small town of Pineview, Montana. But just when she thinks they're safe-- the nightmare starts all over again. The Crew, a ruthless prison gang with ties to Laurel's brother, will never forget and they'll never forgive. And now that they've finally found her again, they'll stop at nothing. It could all end in seconds. Only Sheriff Myles King stands between Laurel and the men who want her dead" -- author's web site.

A forbidden romance that puts Pia's heart on the line in the ultimate wedding escape from the past.

In a Montana town, a veteran coping with PTSD and a newly-divorced woman named Jillian form an unexpected bond that reshapes their lives, exploring friendship, family, self‑confidence, and the complexities of ranch life.

On the remote island of Valanu, billionaire Slade Hawkings confronts the alluring Alli Pierce, believing her a gold digger, only to discover a single night of passion could reveal deeper secrets and unexpected truths.

A romance novel about a single father and a delicate schoolteacher trying to build a family together on a ranch.