I personally invested my money into the following projects because I truely believe in them and personally find them to be great projects. But invest at your own risk. Remember, this is my personally preference for long term holding.

1. Cardano (ADA) - My favorite of them all.
2. Pundi X (NPXS) - Love the project and the monthly free airdrops (7.316% in 2018, 2.11637% in 2019 and 0.88187% in 2020) for those that HODL tokens in their respective wallets.
3. Sirin Labs (SRN) - Great potential to being the next Samsung/Apple in the crypto/blockchain space.
4. Ethereum (ETH) - One of the best and safest altcoins out there.
5. ICON (ICX) - Undervalued project with huge potential.

GL!