@Riot during research and idea development stage where do you usually look for inspiration?

I know a few websites where i'd think you look for inspiration, example: Pinterest, Artstation, Deviantart.

But out of curiousity I wondered and wanted to ask where some of you people in the Riot department look for inspiration? Whether it's for Character Rework ideas or a new Champion in general.

Or do you what most common artists do, go outside to the real world and look around to find anything that would generate a specific strong idea?