So I don't own bitcoin any more but want to get back in the game and make a purchase. What is the best exchange and do all them have fees for buying and selling each time? Binance seem to be popular but coinbase pro doesn't seem far behind.
What's the difference between a stop and limit order?
If you don't own bitcoin, you won't be able to do trading at binance and there is no point to know what is stop and limit order. You need to have bitcoin first in order for you to trade.
First tell me in which country do you live and i will help you find out which is the best site to buy bitcoin. Also note that coinbase does not support all countries for buying selling bitcoins.