One very trusted is Poloniex, people are investing high there. Many alt-coins options and one of the favorite exchanges to practice trade. There is an option to lend money to traders there too, it can return you some little interest over your money, low profit, but safe.
Another option is Yobit, which you can find on my Signature Spot. Yobit has many alt-coins, Dice game, one new another gambling game and many people are using this exchange too.
There are anothers, but I'm not acquainted with them.
poloniex only the best altcoin exchanger and right place to trading growth your money
but if want buy and selling use fiat money poloniex not right placed, because only support USDT(tether) can't support bank transfer