Here are some film suggestions.
I have recently started shooting medium format film, although in 6 x 4.5 cm size. I am totally amazed at the color slide film I get. Just incredible colors! I would die to see this in the larger formats. So I suggest you shoot some Provia 400X. It is an amazing film and you will just revel in the amazing slides.
Second, if you have good light, Neopan Acros 100 film is just incredible too. I never shot this film back in the film era. I am not even sure it existed back then. But now that I have seen it, it is my GO TO film for good light. A shame that it is not available in 400 speed so in those cases I fall back to Ilford film.