Luna does a fantastic job of making these ideas as accessible as possible while giving some real world examples to consider.
Marxism
What Constitutes a Socialist Society? – Xexizy (2017)
A great (but higher level) explanation of commodity form and state capitalism.
Marx’s Capital with Martin Thomas
This playlist is a fantastic breakdown of Marx’s Capital in everyday language.
Richard Wolff Marxism in the US
Wolff explains the history of Marxism in the US. This really helped give context to the anti-Socialist culture in the US.