If California is calling to you, an option in between a university and a stand-alone liberal arts college would be the Claremont Consortium schools in LA. The campuses are all adjacent and walkable, and the course registration system is integrated… so in many ways it’s like one larger campus with 7000 undergrads (and a couple of graduate divisions). Humanities offerings are phenomenal, and all of the schools meet full need, although each has its own financial aid formula.
Of the five schools, Mudd wouldn’t be a fit, because it’s STEM-focused, but the other four are all worth a look. I can’t tell from your post whether you could apply to Scripps. (They accept non-binary students who were female-identified at birth, and female-identifying applicants regardless of gender-at-birth, but not non-binary never-female applicants. Although students who transition once there can continue and graduate irrespective of gender identity, and it’s a very inclusive environment, especially with consortium students of all gender identities around all the time.) Academically speaking, any of Scripps/Pomona/Pitzer/CMC could fit what you’re looking for… and it’s definitely not the “Boarding School 2.0” vibe to which skieurope alluded. The student newspaper is joint among the 5C’s ( https://tsl.news/ ) so it has the critical mass of a university paper and operates at a high level of professionalism - there are recent grads working at NYT, WSJ, SF Chronicle, etc.
There’s also the Massachusetts 5-college consortium (and Mount Holyoke welcomes all non-binary applicants, fwiw), but those schools are more separate than the Claremonts are.