I recommend to choose a cryptocurrency exchange which is safe, this is the most important for every trader! Try one of the platforms which have great opinions among traders, for example CoinDeal or Kraken. These two are my favourites, but now I can especially recommend CoinDeal because of its attractive fees and free deposits. It even has the VQF Swiss License so it's super safe. Here you've got the link:
https://coindeal.com/.
Of course , we would really choose up those exchanges which been known to anybody but there were still people who do lost track and using up the unknown ones.
When it comes to exchangers then i do like Binance and Bittrex though.There are lots of options somehow but these are the top picks i believe.
Just a note, dont leave funds on exchangers yet theres no such thing about 100% safe.