productive red tomatoes for SF Bay Area?
I offered to get a friend 2 tomato plants that will be productive for this area and have great flavor, one heirloom and one hybrid. She doesn't want cherry tomatoes. I've grown mostly heirlooms, but I'm looking for ideas for both heirlooms and hybrids. She had Early Girl in a container last year and thought the skin was too hard. The nurseries still seem to have a great selection. W're on the peninsula, so it's a little warmer than SF and the east bay, but not as hot as inland or the south bay. Larger ones tend to produce a few in the hottest part of summer, then peter out.
What have been your most productive and best tasting medium-size red tomatoes?