Bernice is right if you want/need to use excessive amounts of front rise, but the Nikkor 90mm f/8 is pretty close in terms of image circle.
When I first started LF, I did some architecture photography and on one church I wanted to photograph, my first lens, a Schneider 90mm f/8 Super Angulon MC, the image cut out before I had enough rise (hard black vignetting). I got a Nikkor 90mm f/8 soon after and at the same place, I was able to get it into the frame. Both these lenses claim 235mm image circle I believe, but from my test there I got more actual image from the Nikkor (some will debate the image quality, but in my photo the corners were just sky so it didn't matter). I now also own a 90mm f/5.6 XL. This monster has a 95mm filter thread (the previous lenses are 67mm) and is way heavier, for an image circle that is from the specs only 10% larger, but probably even less of a difference from the Nikkor from my experience.
On the other hand, I have seen some 90mm XL lenses sell for around the same price as the Nikkor, but that might've been a fluke. If you buy the Nikkor 90/8 it'll certainly serve you well and you can resell it easily if it doesn't work for you.
The actual best value for a 90mm lens for architecture though IMO is the Schneider Super Angulon 90mm f/8 - which can be found under $200 and will be just fine for most things, even architecture - it just has slightly less image circle. Back up or get higher and it's probably fine. Of course there will be times where you want the larger IC but it depends on what you are shooting whether or not that will matter for you generally.
Bookmarks