I think that you will find many small liberal arts colleges with rigorous academics and intellectually curious and academically committed students. LACs tend to have distinctive personalities, and by researching on line and hopefully visiting, you should be able to put together a list of schools at varying levels of selectivity that are good cultural fits.
If you think you may eventually pursue a career in architecture, you should also consider how your undergraduate education will help you achieve that goal.
You may be aware that in order to become a licensed architect in most states you will need either a Bachelor of Architecture or Master of Architecture. To be admitted to a Master of Architecture program you can major in just about anything as long as you fulfill the program’s entrance requirements, which are generally speaking, courses in art studio, art history, physics and calculus. You will also need to submit an art portfolio, which is a major factor in admissions.
MArch programs can take between 1.0 and 3.5 years depending on your undergraduate experience and the individual MArch curriculum. There is a big variation! MArch degrees tend to be expensive. Although grants are available, funding is less easy to come by than it is for undergraduate studies, so you really have to plan ahead financially.
For undergraduate you can either get a Bachelor of Science in architecture or a Bachelor of Arts in architecture, art or really anything else. BS Architecture programs tend to be narrower in focus than BA programs, but may shorten the time that it takes to get an MArch. I don’t know of any LACs that offer the BS architecture, but many good medium sized privates do. Top MArch programs admit students from a wide range of educational backgrounds, so find a school that fits you culturally.
My son graduated from Williams College with a BA in art history and art studio. He worked for a few years after graduated then went back for an MArch. Williams doesn’t have an architecture major, but they do have a very strong art studio and art history department . They also have an excellent track record for MArch admissions and arts related internships and job placement. My son would agree that a strong liberal arts education is beneficial to a career in architecture, and I believe that Williams would offer a lot of what you’re looking for.
Some other schools in addition to Williams that I would recommend would be Wesleyan, Middlebury, Conn College, Smith, Haverford, Hamilton and Brown. There are plenty of others. Just be sure to consider the aggregate cost of both undergraduate and graduate school when making your list.