That reminds me, Blowing in the wind's an incredibly easy to learn song too, four chords, easy progressions, only one quick change to an easy Em (I believe).

https://tabs.ultimate-guitar.com/b/bob_dylan/blowin_in_the_w...

You can also do it without the Em, but it doesn't sound as good.

https://tabs.ultimate-guitar.com/b/bob_dylan/blowin_in_the_w...