You can watch various Degrassi series on multiple streaming platforms depending on which iteration you want to see:

• Degrassi: Next Class is available on Netflix

• Degrassi: The Next Generation can be streamed on Max (HBO Max), Amazon Prime Video, Tubi, Pluto TV, The Roku Channel, and VIX (some free with ads)

• Earlier series like Degrassi Junior High and Degrassi High are available on YouTube for free, and Degrassi High can also be found on Daily Motion

• The original Kids of Degrassi Street is less connected to the main series but is part of the franchise history

In summary, for the newest generation watch Netflix, for The Next Generation watch HBO Max/Max or free ad-supported services like Tubi and Pluto TV, and for classic series check YouTube or Daily Motion