Would he get hired today?

He was worse than lazy. He would show up and demand ridiculous changes to the characters and script. He insisted on this outfit for The Missouri Breaks: https://m.media-amazon.com/images/M/MV5BYTBjOTQwOTYtMWEyZC00ODUwLWJkN2YtNjI4ODhjMWE4OTYyXkEyXkFqcGdeQXVyNjUwNzk3NDc@._V1_.jpg

And this for The Island of Dr. Moreau: https://www.theguardian.com/film/2017/sep/16/marlon-brando-monster-sabotaged-my-film-island-of-dr-moreau#img-1

In my opinion, he was worse than useless. If a director had a personal vision for a film and Brando was cast, forget it. He would make a mockery of it.

He worked up until near the end of his life. I think with the reputation he has he would still be hired regardless, albeit mostly for cameos or supporting roles where his unreliability would be less likely to delay or end a production.

NIC CAGE IS THE MODERN BRANDO...CAGE WORKS CONSTANTLY.

I think he'd have had a much shorter career, if he came up today. If a young Brando came up today, he'd be noticed and hired because of his talent, sex appeal, looks, and willingness to screw anyone who could help his career (Brando allegedly screwed Tennessee Williams to get his big break in "A Streetcar Named Desire".

But while the real Brando worked for most of his life, modern Hollywood is now dropping actors once they have a few flops or piss off the wrong people, and a modern Brando would not be spared. There would be bad behavior, unprofessionalism, scandals... and bye-bye modern Brando.