I've grown a few tomatoes for 5 years or so when the sun isn't destroying my garden in Deep South Texas. The drought of 2012-2013 mostly killed everything I had. 100+ contiguous days of 100+ degree temperatures was just a furnace. Even now, it's getting darn hot. Well, here's a few that I'm doing this year for you to check out and see how they do in Zone 9b in self watering containers. The growing medium is coco coir with worm castings and azomite mixed in. Liquid FoxFarm is added periodically when I feel like it with the water - probably 2-3 times a week. They started out on the North facing of the house under a monster mesquite tree and quickly grew extremely leggy with little foliage. After moving them to the East side, they get morning sun through noon, then a respite for the rest of the day.
Here they are freshly transplanted into their new SWCs from the store. My local grocery store had many heirlooms available for about 1/3 the price that the Big Box stores typically sell them for.
Mariana's Peace & Sungold
Yellow Pear & Black Krim
Here they are about 6 weeks later. The Krim and Yellow Pear are lopsided to the right and the Yellow Pear actually fell over. Tied it up temporarily.
Closeup of Sun Gold
Black Krim 1
More Black Krims!

I'm really looking forward to the Black Krims. I've heard plenty good. I've grown Yellow Pear before, but they didn't do well for me. One more try. The others are new for me and I hope they do well. We'll see.