It all about fit. If OP finds environments that are super-liberal, artistic, non-preppy, etc. to be more comfortable for him/her (I know I would!), then that’s where s/he should concentrate his/her efforts. I went to Georgetown decades ago and, in retrospect, I probably would have been better off elsewhere as I found Georgetown to be too conservative and, yes, too preppy for my taste.
If CA is an option, then, as others have mentioned, Pitzer would certainly fit the bill. Other schools that come to mind, many of which were mentioned early on, include Reed (but there’s a lot of smoking- of many things! - there), Oberlin, Grinnell, Bard, and Sarah Lawrence, among others.