whats best way to cook frozen chicken??? after i thaw it obviously..

what are good seasoning and should i bake broil bbq or whats best?

also if i bake then in a pan and when they cook they let out alot of juices...are those dangerous?

Obviously it's all personal preference when you say "the best."
I can help you with recipie and procedure if you can tell me more of what you have around, what you're having with it, and what cut of chicken it is.
But no, the juices are not dangerous, raw chicken is bad because it has the chance of carrying salmonella bacteria. salmonella dies at 159(arguable) degrees f or 71c.
No matter the recipe you want to make sure it gets that hot in the middle with a thermometer, or just make sure it's white all the way through.