North Coast Photographic Services in Carlsbad, California, developed the Tri-X film. They process their black and white film in a Hostert Dip & Dunk system using Clayton F76+ developer. I found that the regular development is too contrasty, so I requested to pull one stop (or N-1). The negatives are still a bit hard but close enough. If in doubt, you want the development to be low-contrast or soft because you can add contrast with software adjustment later, but with a hard negative, you might have lost details in the shadows (totally black) or the highlights (totally white).
I still have a few rolls of the super fine-grain Ektar 25 color negative film in the freezer. When the Rolleiflex comes back from its cleaning and overhaul, the Ektar 25 can go on a tour of the Mississippi Delta. For more information about how a Rolleiflex works, see this older post.
Dear readers, borrow or buy a film camera and try traditional photography. The results might surprise you. You might find it more rewarding than the "spray and pray" and instant gratification of digital imaging, the taking of a thousand photographs over a weekend that you soon file and forget.