Culture is based on a lot of different things. A lot goes into the cultural fit of potential attorney on their resume. What are the resumes of the people in the law firm you're applying to look like? What does that mean? It means, what are their activities? What interests are reflected?
What are the schools? Some law firms may brag about pro bono. And if that's the case, that would be a cultural fit that might benefit you. A firm representing indigents and things against the government or whatever will have a different cultural makeup than other firms. So, you have to understand what the law firm is looking for.
There's no right or wrong answer, but whatever you do, you will. Put yourself into a particular box that will either help or hurt you. Be very careful with that kind of stuff. So your cultural fit will be like, what are your priorities? But when law firms hire people, they hire people whose priorities are typically related to your practice area.
It doesn't mean law firms discriminate against people from different political parties, sexes, or races. It means that it typically relates more to your interests and whether or not those are compatible.