I don’t know why these schools are not included, but a list of LGBTQ-friendly schools that doesn’t include Vassar, Hampshire, Bard, Oberlin, Sarah Lawrence, or Wesleyan would be like having a ranking of top engineering colleges that doesn’t include Stanford, MIT, CIT, Olin or Harvey Mudd.
Williams may have good LGBTQ support, but it is also in a very small town and has an active jock culture. I could see the OP at Tufts but not Williams. If the OP identifies as female they may want to look at women’s colleges. Smith is right outside of Northampton. It’s a small city but very accepting, with a thriving queer scene.