ARBs and ACE Inhibitors might have some use too. They can steer the immune system reactions away from inflammatory toward the anti-inflammatory path, because they mess with one of the receptors the virus uses.

MEDCRAM on YouTube has some very detailed talks primarily for doctors by a pulmonary specialist working at Loma Linda. They get pretty complicated but if you have any biochemistry or medical training they are not that hard to follow. I like the fact that he uses evidence from scientific journal papers to back everything up.

By the way, every patient he sees who he thinks has the virus gets hydroxychloroquine, zinc, and ivermectin.

He even has one on what he's taking and doing to stay healthy seeing Covid-19 patients every day. I'm trying to duplicate that since I am high-risk.