Go to the source
For venue arrangements, opening times and access information, begin with the organisation responsible for the place. General inspiration can help you choose a direction, but a current primary source is the right place to confirm practical details.
Keep a small reference folder
Save a few images or notes that explain what you like: the light, the pace, the way people relate to each other. Add a sentence in your own words rather than collecting hundreds of unexplained pictures. A small, thoughtful set is easier to discuss with a photographer.