Certified GKH Gardening Expert
They do grow bushy and fairly quickly. If you need to transplant them, early fall would be a good time to do it. It's hard to tell from your photo, but I don't think they're too close together, but maybe a little close to your fence.
Here's an article for you: https://www.gardeningknowhow.com/ornamental/trees/cypress/lemon-cypress-care.htm