Ok i am going to buy some bitcoin and steem

Ok I am going to buy some bitcoin and steem I am new at the cryptocurrency world and I am dipping a toe in it today . What site do you Guys use to buy your Bitcoin from. because the more I have looked into it you can't buy and of them unless you have Bitcoin first . I was also looking at buying Ripple looks like the one to watch . Anyways feel free to give me your input . like I said I am new to this