Go / Wéiqí / Baduk is like the ocean, simple to understand near the shore, but unknowable and somewhat scary in it's greatest depths.
Games on a 9x9 board are faster and may help during early learning.
Tsumego are small contained Go puzzles, where there is one ideal solution to be found. (Gobandroid or similar)
There is a massive amount of knowledge at this website:
https://senseis.xmp.net/?StartingPoints
(All available under the Open Content Licence)
It is a humbling game. I know nothing about Go.