If you do not have experience in trading, please study everything you can trade to get a good profit.

convert your money into bitcoin ( i don't know where you live in but in my country it's quite easy just by using an official btc wallet app here). then go to exchanges and choose the coin you want to hold

At  first you need to select your coin on right way.you have to fixed that coin to trade. Then just need to find a exchange where that can tradable. for example :- you can trade from hitbtc,cryptopia,poloniex,livecoin etc.
 After that you exchange it by bitcoin that's the way of buying any altcoin. You can hold as your plan and sell it to get profit.

If you want cheaper price tokens, its better to buy tokens in Ether Delta but you need to create account in My Ether Wallet and put some ETH in your balance. A lot of cheap tokens with high possibilities to pump on that platform because those tokens are came from successful ico. Off course you need to study first the project and status of your target tokens just to know if how and until when you can hold it. Because sometimes it takes time before the price will go high defends on their calendar of activity.

You can find every altcoin you want on coinmarketcup site. There they write where you can trade it. Which echanges. Go there, register, put money on ur account and you can trade

If you are beginner for trading, Then i will recommend you at first study well about trading and how to do that.. Because in trading there have always risk.. You may try some exchange site like Bittrex and Yobit.. These site are best and very user friendly for everyone.. I hope you will like it.. Best of luck

Bittrex has always responded to my support queries quickly and they are a highly professional U.S.-based company. This exchange was the first altcoin exchange I’ve used.

you can buy it in exchange ie etherdelta, yobit or poloniex and others.
you can trade with eth or bitcoin as a purchase tool

The first trading site I went to is bittrex. Trading is complicated at first but its interface give simplicity unlike others are very confusing to use. Buy bitcoin on coinbase first and then transfer it to bittrex.