Thank you! If the practice areas of the firms is not necessarily very similar but they have similar training styles/core values/vibes, is that something worth mentioning? Or is it best to stick to practice.I think being specific where you can is helpful and persuasive, but there is a balance to it. I think you can just reference one (possibly two firms) but ensure they are most closely aligned to the firm you are applying to.
In your situation you could say something like “Having enjoyed the work I completed at Joe Bloggs LLP, I am interested in firms with a strong project finance practice”.