You asked about 2 separate issues. The first is that all current Fuji paper, in sheets or rolls, is designed around laser exposure:
there is a thread here posted by Koraks discussing that issue. Related, Fuji papers have different names in the US vs Europe for the same papers.
As for availability, all that is left in cut sheets is Crystal Archive II. All other papers are only sold in rolls, if you're serious about color printing, it's worth making a setup to cut down roll paper.
Pakor.com and
uniquephoto.com have many of the other papers in stock, or can order them in. Here is Fuji's US paper listings:
https://www.fujifilm.com/us/en/business/photofinishing/paper-lab-products
Thank you for elaborating! Just a few remarks to update on fairly recent events.
Firstly, the deviation in paper names is a bit of a confusing topic. You'll really have to ask FUJIFILM US what they're selling under which names. All RA4 paper is currently manufactured by the plant in The Netherlands. The US may hold on to some product names because the market is used to them. For instance, 'Super Type PDN' was apparently US-produced DPII and it's possible that the US may keep selling EU-made DPII under this name. Local Fuji branches enjoy a considerable degree of autonomy and it's reflected here.
The only reliable list of currently manufactured papers that I'm aware of is on the originalphotopaper.com website. It's maintained by the Dutch manufacturing people. The website of FUJIFILM US seems to lag behind on recent events. For instance, it still lists the 'canvas' paper that's not produced anymore, and Flex and Trans as well (which were produced in Japan), which are slated to be discontinued, or already are. I know this inconsistency between websites is a bit of a frustration of some Fuji employees because it's apparently really hard to harmonize a variety of websites that are maintained by local entities. Again, it has to do with autonomy of the local organizations.
The cut-sheet situation is such that all sheet cutting happens outside the plant where the actual paper is produced. This plant only produces rolls. Some 3rd parties buy rolls and cut them to sheets, and it's possible that some local Fuji offices do the same (or, more likely: contract out this work to a 3rd party). It really doesn't matter; if you have a retailer who will sell you only Crystal Archive in cut sheet and not e.g. DPII, kindly ask them to offer DPII and/or Maxima in cut sheet as well.
In my mind, it doesn't make sense to only sell the entry-level Crystal Archive products to people who do optical printing. If you ask the people at the paper plant or those close to it, they'll recommend Maxima or DPII for 'analog printing'. If you as the customer indicate your need, the distribution channel may (will) at some point respond.
The fact that they may be optimized for digital laser exposure doesn't mean that they are not highly usable for high quality optical exposure.
This is correct. Fine prints can still be made on these papers, even though they are (all!) optimized for digital.
The emulsions are all the same across the Fuji papers. They are all optimized for digital, but will form an image under the enlarger. There are no 'optimized for analog' FUJIFILM papers in production. I know some of the datasheets still suggest this, but it should not be interpreted as these papers actually being 'designed for' analog printing. They really are not. But they will still work for this purpose.
The difference between the papers is the thickness of the image-forming emulsion layers and the supporting layers (interlayers, protection layers), and sometimes the paper base. The emulsion layer thicknesses influence dmax, gamut and archival stability. There are real and significant differences if you print the same negative on e.g. CA Supreme and DPII and compare them side by side, and this is entirely due to these layer thickness differences. These differences can be exploited, and the general 'rule' is that the cheaper papers (Crystal Archive II, CA Supreme) will give a more muted, less saturated look (but large areas of solid black may render disappointingly when viewed under strong illumination) while the higher-end papers (DPII, Maxima) will give 'punchier', more saturated colors and more contrast, and also more satisfying blacks.
If you have any questions, please feel free to ask. I'm in regular contact with my contact at Fuji and he's very enthusiastic about the interaction with the 'outside world', and he's thrilled by what's happening in the analog community, even though it represents a tiny volume for them. Even though I/we may not be able to answer every question, it's already enormously relevant to them to know what kinds of questions 'live' out here in the community so that they may (where possible...) adjust their business processes to optimally suit those market requirements.
PS: if you wonder how these papers are made: have a look at the Kodak videos (smarter every day) on film production. Conceptually, it's really the same. There are a few key differences in how the paper is being produced, but overall it's really a very similar process. Did you know that the speed of coating is roughly 140 sheets of 8x10"
per second? It's an amazingly tuned and carefully balanced process.