There are so many types of congee. Here are my votes for the best versions of each southern Chinese congee style that I know of in the Bay Area.
Best ‘fancy Cantonese restaurant congee’: lean pork and century egg congee at Harborview, SF
Best ‘everyday Cantonese restaurant congee’: Gum Kuo, Oakland
Best ‘take out dimsum congee’: Dim Sum Bistro, SF Chinatown
Best congee according to Cantonese old people in the Bay Area: Hing Lung Cafe, South San Francisco