At the weekend, Bleeding Cool pointed out that Starburns Industries had made their Starburns Comics Presents title for Free Comic Book Day 2019 available digitally for free from Sunday, May the 5th.
Today, a few others joined them.
Onie Press has made their Ghost Hog comic book by Joey Weiser available for free too.
And Marvel Comics has both of its titles available digitally for free, the Avengers title featuring looks at the Avengers to come, where Iron Man landed up and a prequel to last week's Savage Avengers #1. And one of the saltiest digs at DC Comics I've read in some time… and the Spider-Man title which sets up much of what is to come in Absolute Carnage and beyond.