Here is top 5 you want to invest. i'll give you a hint based on my research though
NEO (NEO)
MarketCap #12 - $ $4,955,093,000
Value: $76.23
NEO, also considered as the Chinese Etherium and previously called AntShares, is the next generation smart economy platform. It is a decentralized cryptocurrency based on blockchains. Its main feature is the creation of intelligent contracts supporting multiple languages.
MONERO (XMR)
MarketCap #10 - $5,574,693,680
Value: $359.80
MONERO is a open source cryptocurrency based on the CryptoNote protocol, with some interesting characteristics as security, privacy, scalability and the impossibility of tracking any transactions. It is an untraceable currency system which uses a special kind of cryptography to ensure that all of its transactions remain 100% unlinkable and untraceable.
STEEM (STEEM)
MarketCap #35 - $626,343,305
Value: $2.54
Steem is social network where content creators and curators are rewarded. Steemit pays both the content creators when their work gets upvoted, as well as the people who curate the best content on the site by upvoting others work.
OMISEGO (OMG)
MarketCap #21 - $1,743,182,708
Value: $17.08O
Built on the Ethereum platform, OmiseGOs vision is to become the number one, peer-to-peer cryptocurrency exchange platform. OmiseGO is much more than an altcoin. Its designed to be a financial platform, with the intent of disrupting current financial institutions and methodologies. OmiseGO describes itself as: The answer to a fundamental coordination problem amongst payment processors, gateways and financial institutions.
ARDOR (ARDR)
MarketCap #28 - $1,110,617,709
Value: $1.11
Ardor is a platform as-a-sservice created on the NXT Blockchain, with some interesting characteristics as a controllable size of the Blockchain, Safe Smart Contracts, customizable child chains, a decentralized market of assets (allowing operations between childchains) and a decentralized government voting system.
This is also my Top 5 target within this year to invest.