Here are my recommendations for sources of information on growing fruit and nuts in San Francisco and the Greater Bay Area. Also search this blog for info on citrus HLB disease and on wooly apple aphid, both problems for which you should keep a lookout:
Golden Gate Gardener: Third Edition, Pam Pairce, Sasquatch Books, 2010. The chapter on fruit is a good primer on selection of fruit-bearing plants for Bay Area gardens, with a discussion of microclimate adaptation and summaries of the care and possible problems involved in growing specific fruits. Suggested varieties included.
ANR University of California Publication 8261 Selecting Fruit, Nut, and Berry Crops for Home Gardens in San Mateo and San Francisco Counties, by K. S. Jones and Laurence R. Costello. http://ucce.ucdavis.edu/files/repositoryfiles/8261-54314.pdf
Grow a Little Fruit Tree, Ann Ralph, Storey Publishing, 2104 This is my favorite book for current and prospective fruit tree owners. She covers choosing, planting, harvesting, pests, but most importantly, pruning. The most important information in the book is how to make the first cut and prune the tree in the early years to create trees that you can harvest without having to use a ladder. The illustrations are attractive and useful.
California Rare Fruit Growers. This California-wide organization has local chapters that often give workshops or hold scion exchanges. They are on the web at crfg.org, especially useful is the fruit facts Wiki, https://crfg.org/wiki/fruit/, which includes fact sheets for many kinds of fruits, especially subtropical ones. They also now have a YouTube channel, at https://www.youtube.com/results?search_query=crfg.