Sure. 'Sons of Anarchy' inspired some interesting MC club romance novels. One is 'Ride Steady' by Kristen Ashley. It has a great story of love within the MC world.
One benefit is that it can be an escape from reality. The romantic stories in these novels can make you feel good. Also, it helps improve your vocabulary as you encounter different words in the context of the story.
Love at first sight is a common theme. For example, in many novels, the main character just sees the love interest and there is an instant spark. Another theme is overcoming obstacles. Like in stories where the MC and their love interest are from different social classes or have some external issues that they need to work through to be together.
For writing MC romance novels, start with a unique concept. Make the characters have depth and growth throughout the story. Ensure the romance progresses naturally and isn't forced. Also, pay attention to the dialogue - it should be authentic and convey the characters' feelings accurately.
Family, in a non - traditional sense, is also a big theme. The motorcycle club is like a family to the characters. They support each other, protect each other, and this sense of brotherhood (and sisterhood in some cases) plays a major role. And when a romance blossoms, it becomes part of this bigger family unit, with all the joys and challenges that come with it.
The theme of secrecy is quite prevalent. The MC has its own set of rules and secrets, and when a romance blossoms, these secrets can either bring the couple closer or tear them apart. Another theme is the idea of the outsider. Often, the female lead is an outsider to the MC world, and her entry into this world and relationship with an MC member is a central part of the story. Also, the theme of family, not just in the traditional sense but also the MC as a family, plays a role in the relationships and the overall story.