Everything concerning education expenses is entered under the Deductions & Credits tab in the Education section. Take note that you only enter those expenses actually paid in 2020. It does not matter what tax year you paid *for*.
Also for others reading this, education expenses are not only for a college. There are a fair number of other educational institutions that qualify. Basically, the expenses qualify if the student is enrolled in a course of study that will lead to a degree or "credentialed certification". An example of a credentialed certification would be a certified dental hygienist.