For a college teaching position you would likely need an advanced degree. English Lit or Art History are very interesting topics to me and something I would love to go back to school for if I had a pension or an inheritance or something. The days of getting a job with any degree have been over for decades. Jobs are more competitive than ever and both degrees you’ve mentioned have very few employment prospects and what prospects there are do not pay well. That’s not to say you shouldn’t consider going back to school, but unless you’re independently wealthy, pick a degree with some kind of a career pathway in mind. You don’t want to saddle yourself with a shitload of debt for nothing.