In the United States, the Green Party. The Green Party is a strong advocate for Socialism in the United States.
The Green Party states under their second platform "II. Social Justice" section "E. Education and the Arts" ninth paragraph, recommended action list item b "b. Provide free college tuition to all qualified students at public universities and vocational schools. It's time to forgive all student and parent loans taken out to finance post-secondary and vocational education."