Available Cases for iPad Pro 12.9-inch (4th generation) that support vertical display?

I purchased an iPad Pro 12.9-inch (4th generation) late last year. I have no complaints, it's a beautiful device and with the pencil, perfect for my needs.

But finding a case for it has been a giant frustration.

There is a giant horde of various cases & sleeves but like Apple's branded cases they all bias to supporting the iPad in a horizontal position only and a number of them, like Apple, make no room for the pencil.

I am a researcher and an illustrator. so I use the iPad in two different an specific ways: horizontal for video viewing ( and in hand for drawing) and upright / vertical as a digital book to display PDFs.

Trying to read a PDF in horizontal position makes for slow and cumbersome reading, scrolling is required to view a single page.

There is one case I have found that comes close, made by Decoded and only available at Apple, with my requirements but not the right size: Decoded Leather Foldable Slim Sleeve iPad (7th generation).

It comes in at $100 but I'd pay more if I found the right case, considering the investment in the iPad Pro and the pencil, it's worth it to protect it.

No one has caught up to the new iPad yet, including Apple, when I went to choose to the right device (below) they did not have 4th Generation in the list.

Any advice or tips would be highly appreciated.

BTW Don't need a keyboard, in research mode I use the iPad sitting next to my computers, again, like a book.