reaper_cushions already recommended “Women, Race, and Class” by Angela Davis, which is the big one.

I would also recommend the ShitRedditSays recommended reading list, which is a nice collection of short and effective articles, by the people I learned feminism from. They have links to longer essays from the 101 links. The only caveat is that it says you should read the ShitRedditSays FAQ first, which you don’t, because they haven’t been relevant in nearly a decade.

Also it’s a mixed bag of whether you’ll get Marxist-feminism or not there. The short version is that class struggle fits inside intersectionality theory, and class is just another axis of oppression within the kyriarchy (although the biggest one by a lot). That’s a lot of jargon right now, but when you see these terms defined and wonder how they fit with class, just come back to that description. Nesting the theories this way works very well, and they’re very compatible when composed this way.

(Often I find that people are hostile to Marxist-feminism, because they see treating intersectionality as the more general one as somehow robbing the prestige of Marxism, and how can this squishy thing by girls be more important than the immortal science? And if you find that you’re one of those people, it’d be good to spend some time unpacking your assumptions.)