If it makes any difference, the Leghorn cross eggs that I incubated and candled were the best candling experience because of how large, and white and as best to clear as one could get with an eggshell. Even if you don't particularly want anymore, I would still suggest incubating a few just for the experience and then selling or trading them off locally.
The only downside is because they can be so much bigger, they might need a couple extra days to hatch, so if all your other eggs hatch, don't be surprised if the big white ones need a bit more time.