Here is something pictures of successful container plants, that I have going.
'Dwarf Orinoco' banana, in a 30 gal plastic barrel. I get these barrels for free from the car wash, they were holding biodegradable soaps. I panted them black to heat up the root zone in the cooler months. Soil mix is mostly pine bark with perlite, some peat with a tad of compost.
'Jewel' Blueberry, 5part pine bark, 1 part peat, 1 part perlite.. this mix works well for me even with non composted pine bark. Blueberry loves the acidic nature of pine bark and peat. I usually have struggling plants because of high PH tap water, not the case with this soil mix.
Wax Jambu, flushing new growth and doing well in 15 gal container with 5/1/1 mix. Wax jambu has great tolerance for heat/dry weather (once it got adapted) for a subtropical fruit. I could see Wax Jambu performing well in AZ and CA desert locations, as long as its water requirements are met. The waxy leaves must be excellent at preventing excess moisture loss.
Kishu mandarin, in a fabric container. I have been phasing out some of the containers in the place of fabric ones. However, I have been wary to put water loving plants like jaboticaba and lychee in. Been using mainly pomegranates, citrus, and cactus. Any plant that can go a few days with drier roots. So far I have seen good results, the Kishu has grown nicely since its transplant.
I have also been testing the root pruning container with 'Ewais' mango, to early to say if I notice a big difference in growth. It is currently flushing atm, I also have a feeling its root system is doing very well in a 5/1/1 mix. Will post a picture later perhaps.