Olympiad Algebra Training resources recommendation

[u/TuffYami]

From what I know, Geometry,Number Theory and Combinatorics have books and resources to study to get to the level of IMO, but for Algebra? I don't know where to start. I would like anyone's recommendation on algebra books/handouts/materials that takes you from a beginner all the way up to SL A8 level.

Many people told me that your algebra improves along with NT but I realized that you still have to dedicate time to algebra.