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?
It really depends on the country you are living in and which currency you intend to sell. In all major countries are bitcoin exchanges that vary in fees. It also depends on the size you are looking to invest. It would be helpful if you provide a bit more information so people here can help you much better.