Teach them to be better than you. That may seem counterproductive. I have a type A personality, and I have decent coding skills. I've been in your situation a number of times. I also know there's these mythical expert developers out there that I can't seem to find (or afford). So, what to do? A few years ago I realized that if I continue down this path, I'll end up with some serious health issues due to the stresses that come along with having a reputation for being a really good developer.
So, I decided that instead of searching for developers better than me, I would teach developers I work with how to BE better. It's taken a lot of patience. And it's taken me quite a bit to LET GO of my way of doing things. I had to take my ego out of the picture. (VERY hard to do.)
Nowadays, I realize that developers don't have to BE better than me. I simply have to ALLOW them to do what they do without being so obsessive about it. Turns out, even junior developers really CAN do good work. They just need a little guidance that only comes with experience, and then they need me to get out of their way.