As they’re all one series, I’m recommending ALL of Courtney Milan’s books starting with U (three novels and a handful of novellas). One of many things I love about her books is the heroes. Nary a brooding duke nor randy rake in the lot.
Courtney Milan is not only an expert in Georgian/Regency/Victorian-era English law and law court decisions (and is (or was once) a lawyer in her day job), but she writes the most intriguing characters working through gut-twisting situations.

This series follows three brothers (mostly). Their deranged mother abused them relentlessly. They couldn't go to anyone for help because their mother was the respected widow of the local lord, and very charitable, besides. She let their sister die because it was "God's will". She named them each for Bible verses. Not Biblical characters. VERSES. Of course they all go by shortened versions - Ash, Smite, and Mark.
When Ash takes off for India to make his fortune, their mother tries to kill Smite by starving him in the flooded cellar. Mark rescues him, and they run away, surviving on the streets of Bristol before their brother comes back and finds them. Ash returns a rich man, determined to give his younger brothers everything he wanted and didn't have - an education at Eton, big houses, power. But Smite and Mark have now formed a bond that seems to exclude Ash, no matter what he tries. This is all backstory, but Milan does some awe-inspiring story-spinning with the psychological damage they've suffered.
Ash's story is Unveiled. As relentlessly ruthless as he is cheerful, he's set himself a mission to destroy the wealthy distant relation who refused to help them when they were in need. His love interest? The daughter of that family, who is equally determined to save her family from social and financial destruction.

Mark's story is Unclaimed. Mark is a sincere, funny, likeable guy who writes a hugely popular book on chastity. His love interest? A courtesan who's been hired by a political rival to take him down.

Smite's story is Unraveled. He is a dedicated magistrate. His love interest is a runner for the local crime boss.
There’s nothing contrived about the conflict between the two main characters in each book. Just look at that list! It makes me want to read them all again...
