Your question has no simple answer, and in fact, it opens up a huge can of worms as to which tech camera in general would be best for you. I am in a similar situation, and just did two months of obsessive research on this. At this point, I think I could be a salesman for either Arca, Cambo or Alpa. All three have their strengths and weaknesses, most of which have been discussed extensively on other threads in this forum.
But just to get you started with your journey, you should know that the Alpas are not the best cameras if tilt is very important to you. You can only use their tilt adapter on lenses of over 80mm focal lenght, and then only with buying their tilt adapter which adds another large chunk of cost to the system.
Even with this limitation, many photographers will only want an Alpa, and they are beautifully made and feel great in your hand, and they're a joy to look at!
But getting back to your question, within the Alpa line there are basically 5 main choices: The TC is very compact and has no movements; the SWA has rise and fall, but shift is difficult. It is great for landscape and some architectural work, even handheld; the newest model, the STC has great shift and stitching capabilities, but to use rise or fall you must rotate the camera 90 degrees, which is not a big deal with an extra bracket. The MAX, which is a bit larger than the previous ones, has two plane movement ability, and with the stitching adapter, the movements are all on the rear which can be helpful. And finally, the XY is their largest and heaviest model, more suitable for studio use. Expect to spend $12 to 20K for a body and two lenses, depending on which model, lenses and accessories you go with.
Good luck on your quest. I'm sure many more members will be adding their opinions to help you.