The link below takes you to the Florida thread. State threads are where a lot of people from whatever state talk and stuff. You might have luck there
https://www.backyardchickens.com/threads/florida-always-sunny-side-up.305793/
If I were you, I would be get one of the breeds you already have so some percentage of the eggs would be pure. If you could get an ameraucana or or other blue egglaying breed (preferably not EEs- they might not have 2 blue egg genes) you could get some blue or green egg laying mixes also. But do...