Best Transparency Film for Digital Positives (Lightbox Display)

Hi, I've used pictorico OHP for monochrome digital negatives, but I'm wondering what the best transparency film is for use with printing color digital positive images to be displayed on a lightbox? The prints will anywhere from 24x36 to 36x50. I'm using an Epson 4900 with archival K3 inks.


Thanks!