Ahem - Start by Marxist writers, particularly Marx himself, as most if not all of them reference socialism and eventually most experiences the world had with communism were socialist - There's not a huge difference between socialism and communism and the former is mostly seen as a process to reach the latter even if it is a more desirable system for one's lifetime compared to capitalism. Usually, what we call regulating and redistributing wealth without abolishing the market and private property is social democracy. Don't let people tell you that they're socialist if they support private property and the existence of the market, that's BS and a massive contradiction, either you're a socialist and want to reform the entire system and erase the market, or you're not and you inevitably lean towards some form of liberalism like both liberals and conservatives do, unless you want to follow the fascist route and support corporatism/corporativism which is highly underrated.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you
