Students in Puget Sound’s SOAN department have the opportunity to emerge from the program with substantial methodological training — with two required methods courses and other opportunities to put those skills to work. Nonetheless, additional methodological training can be useful, and this is one of the opportunities available to advanced undergraduate students.
Berkeley’s Center for Ethnographic Research has a summer training program, cosponsored with Berkeley’s Department of Sociology. The program runs from July 7 to August 11, and you can find more details at the links above. If this sounds of interest, have a look.