A PIVX investment will give you access to the first totally private proof of stake coin. If privacy is a concern for you, as I think it will be for many people in the future you'll be interested to know that their POS protocol is the first to introduce completely private transactions for all user balances and transactions.
While having all transactions on the ledger was originally what added trust to cryptocurrencies, now more and more people are wanting the option for privacy while maintaining the integrity of the blockchain. This token, originally a fork of Dash wants to give that freedom back to its users.
You can buy PIVX on most top-level exchanges, and even on some more obscure exchanges that are either decentralized or laxer in their verification procedures should you wish to purchase them anonymously. Not an outrageous desire for one looking to invest in a privacy-based coin. You'll find both BTC and ETH based trading pairs depending on which exchange you choose to utilize for your purchase.
You should undoubtedly hold your tokens in the desktop application, because this is a proof of stake coin, and you'll be rewarded with staking rewards for your investment. Simply download the desktop wallet from the official website, send your currency there, and then make sure your wallet is unlocked for staking. That's all you need to do to begin earning additional money.