His Secret Billionaire Omega by Harper B. Cole

Marcus just wants someone who will love him for him.
It’s hard to find someone who doesn’t have an angle. Having grown up as the son of wealth, it had been hard to find friends who didn’t want to use him. He could only trust his brother. But ten years ago, Marcus realized he couldn’t trust anyone when his parents tried to sell him off to the highest bidder, and his brother supported him. With the support of his godmothers, he escaped that fate, and when they died, he hid his fortune, tired of sorting through who wanted him for what he had instead of who he was.
Killian finds it hard to trust anyone after his dad walked out on their family when he was a kid.
Trust is big for him, which is why he rarely chases after any of the omegas who show up at the club he works at. But from the moment he first lays eyes on Marcus, he knows there’s something beyond that flippant, alpha-chaser facade.
Fate seems determined to throw them together.
Marcus is determined to find someone who loves him without his money, but will his need to keep his secrets drive Killian away before they truly have a chance?