Choosing an exchange to trade crypto is a very personal choice. We have made sure to only support exchanges of high quality that have a great reputation.
So the short answer: It doesn’t make a big difference where you go :) so don’t worry about it and go with your gut.
Long answer - there are some smaller differences, mainly in how many coins they support, different trading fees, and so on.
So here are some articles that can help you get a better idea to make an informed decision: