You can find all AI related events in SF here:
https://docs.google.com/spreadsheets/d/1P6ut7vL-gXKbeDeh3nuP...For me twitter is a great place to learn about new events, there are also bunch of private communities like OnDeck, AGI House Slack and AI Builders Whatsapp group through which I learn about events. If you are plugged in, there are more events than you can be present for.