Let me start by laying out my impressions.
Forte 200 is WAY too grainy in 6x4.5. Developed in D-23. Printed with a diffusion enlarger. It's way grainer then I'd like.
Agfa APX 100 is just perfect for me. OTOH they don't make sheet film. I'd rather something that came in all flavours.
I can live with 100 film speed.
So which of the currently available 120 films would you suggest? Reasonable grain. Similar look to APX would be great.