What MF camera? That is a more difficult question than I am sure you thought it would be. There are RFs, SLRs, auto-exposure,interchangable lens varieties, TLRs, folders, and combinations of all before. There are 645, 6x6, 6x7, 6x9, dual formats, roll film and sheet film models. Some are pretty good. Some not so good. And that is my opinion. You and others may disagree with my opinions.
Personally, I like a Zeiss 6x9 with Novar lens, folder; compact light, and a good picture taker. A Mamiya Super Press 23 I have has 645, 6x7, 6x9 (and one model w/645), interchangeble backs (one a focusing screen for 6x9 sheet film), interchangeble lenses, bellows back, and weighs more that I want to carry now with my back problems. I never bonded with my Rolleiflex and its 6x6 format, so I gave it away to a relative who loves it and uses it. I like a 6x9 with metal case and folding bellows bed that uses 6x9 sheet film, or a roll film back of 129 roll film (Nope, haven't tried spooling that yet).
What would you want? I would suggest looking at what you think you would most like, and start your journey. Many of the older cameras still take surprisingly good photos and don't cost that much. It will be an interesting journey. Some will be great, some will need CLA, some won't really work. You just have to work your way through them. It can be a fun journey, or you may decide early on MF isn't really for you.
Good luck.