For a fan of the books, the two miniseries Dune and Children of Dune are the best representations. Lynch's Dune is just silly with some cool visuals. I'm personally glad Jodorwoski's Dune was never made because it seems excessively silly and mystical while the book is an intellectual powerhouse.
I've been holding off on some films for this month.
Under the Sun
Making of a Murderer
Encounters at the End of the World
We'll see how many I get to, but I like this list.