As for varieties, Canada has a lot of them in most denominations except collectors' coins.
Canada has 7 common coins circulating now....1c, 5c, 10c, 25c, 50c, $1, and the $2. The 1c is barely in circulation and will be totally eliminated as the government and people is/are collecting them from circulation due to the last minting of their cent was in 2012.
But in collectors' coins, they have 19:
1c, 3c, 5c, 10c, 25c, 50c, $1, $2, $5, $8, $10, $15, gold > $20, $100, $150, $175, $200, $300, and $350.