You've got a sunny spot right behind that big bush, move them out of the shade and behind that bush. They look like they could use some sun or something. I would have said super crop them, but you've got like a 4 foot fence. Might wanna think about growing strawberries or something that doesn't grow to 12 feet tall outdoors LOL.
Yeah, it's one thing to control height to a certain degree, and I've seen plants splayed out like huge starfish, but they took up a huge area and walking through and walking in that garden was a nightmare. I've got a couple I'm keeping the height down on now by supercropping it every week or so. It works and I supercrop certain strains from the time they hit the dirt until they hit stretch, but every one of them would be over that fence. Good luck.
Early topping and super cropping will keep them short. These two are only 17 and 20 inches tall. 17 inch was planted on Apr 28 and 20 incher was planted may 6.Both started from seed
If that's the fence you care about, you are so fucked. Those plants are gonna be four to six feet taller. You could train them extremely off to the sides.
You mention you are pruning them often. There is no reason to do that; you aren't helping them.
The best way to keep height down outdoors is starting them late, if you have enough sunshine and provide plenty of water and nutrients they are going to be huge no matter what (almost).