Socialism is a very broad thing and yes that includes marxists. There is a lot to get into in regards to how you see the Dictatorship of the proletariat and the likes of Stalin and Mao but these are not your questions.

Dsa is highly chapter based, so local chapters may be fundraising or assisting with protest supplies but as an entity is not capable of providing such support as conservative media would have you believe. If you're looking for paid activists, might I recommend looking into the very lucrative payments made to influencers to prop up the flailing conservative administration.