COINBASE DOES NOT SUPPORT THE SELL OPTION ANYMORE FOR CANADIANS so here a few other sites you can use.
Fastest Growing Coins - Which Altcoins Should You Invest In?
Cryptocurrency Investing Strategy - January 2018
TOP Altcoins for 2018 and 2019
IOHK | Cardano whiteboard; overview with Charles Hoskinson
Cardano (ADA coin) in a Nutshell