I've been seeing more gusanos active online pushing for "freedom" for Cuba amid the protests in Santiago. We know that the material situation is not good because of the embargo, how can foreigners help the party and people with material goods/resources?
The quickest way will be to search for an org within your country that has already a way to send cargo containers with any materials or resources for Cuba. In Portugal, there was an org that sent educational materials; as well as medicines, articulated beds, walkers and medical instruments for the Cuban health system.
https://misiones.cubaminrex.cu/es/articulo/agradece-embajadora-de-cuba-donativo-dirigido-los-sectores-educativo-y-de-la-salud