I never thought Felix would eat wet food, either, and he still has to be particularly hungry to eat it, so we're still transitioning. I tried a lot of brands and flavors of canned foods trying to find any he'd eat, but the breakthrough came when I started sprinkling FortiFlora on it. It's not a product I feel great about, but it seems worth it to get him on canned; his insulin needs have been steadily coming down since he's started eating some canned each day.
For dry, he gets EVO, which is lower carb than many dry foods but I think not as low as Dr. Elsey's or Young again, and it's not inexpensive. I recently bought a small bag of Dr. Elsey's but Felix won't eat it, even though he's not usually picky about kibble. Two of my other cats do like the Dr. Elsey's, but they willingly eat wet food, so I won't be repurchasing once it's gone.