Books like The oilman's baby bargain by Michelle Celmer

Billionaire seducer Alessandro Falcone ventures into Scotland, where the charm of innocent Laura Reid challenges his reputation and compels him into a new game of desire.

A billionaire's attempt to find out who a baby's father is results in unexpected complications.

Sophie Balfour, feeling overlooked compared to her glamorous sisters, is sent to work for powerful Sicilian billionaire Marco Speranza, where an unexpected seduction and hidden agenda unfold.

When billionaire Evan Reese finally has the chance to convince Celia Taylor to sign with Maddox Communications, their tense business meet‑up turns personal during a trip to Catalina for a family wedding.

Zach Delaney, a billionaire recovering from injury, hires Emma Hillman as a live-in assistant for his Texas ranch. Their professional bond blurs into romance as family values, seduction, and the promise of an heir collide.

A brash Irish billionaire and a guarded woman ignite a forbidden spark, only to be pulled back together as secrets surface and hearts collide.

Marcus and Vanessa: A Billionaire's Secret Son and a Baker's Heartfelt Redemption

Billionaire Marcus Fallon meets the enigmatic Della Hannan, and a passionate but fleeting romance ignites—only to find the woman he desires refuses to be bound by his wealth and success.

Penniless wildcatter Miguel Heydt has come seeking his fortune -- oil -- on Suntop land. But the cranky old owner of the Colorado ranch will tolerate no mineral exploration on his spread, so Miguel hires on with the ranch's haying crew and explores for oil at night. Until a secret contract the rancher proposes is too tempting for Miguel to resist. In exchange for unlimited drilling rights, he's to marry the old man's daughter, Risa, and produce the male heir Ben craves. Miguel woos, wins, beds, and then weds Risa -- falls in love with her, too. But minutes after the wedding, she finds out what he did and she flees. Eleven years later, Risa and Miguel meet at Suntop once more, and the fire between them is still there. But how can she trust him again? A man who'd marry her for drilling rights...a man who'd trade his own son for an oil well?

A story of deception, love, and kingship in a fantasy world.