Paul Martin’s is a good recommendation.
for something less “corporate” I’d suggest going to downtown Culver City. Arrive early evening 5:30 - 7:00, stroll along Culver Blvd starting at Washington Bl, heading south. Lots of choices in restaurants and bars, a lively after work crowd. The Culver Hotel will probably have live music and their cocktail lounge is nice and the hotel is historic, not brass and glass corporate.