Hi, sorry for replying in English, but I hope I can be of some help anyway.
Had a brief look around our Viveport store and found a few apps that could be useful for you, quite a few have some kind of game like elements but they all seem to showcase some sort of unique features that could be useful for business applications of the technology.
https://www.viveport.com/apps/8216bfcc-db08-41c2-8d61-5d4756a...
This is the Automotive Customization Experience. It allows the user to get a feel for a potential car that they might want to buy. It is available for free at the above link.
https://www.viveport.com/apps/f51cf467-9835-4048-9aaf-6b01034...
Think Space is a multi user meeting and brainstorming apps that allows you to write on virtual whiteboards with ideas that can then be exported and used in normal work environment. This app costs 86.18KR in the store.
https://www.viveport.com/apps/63ab79af-b8a4-4182-b214-d2693f9...
This is Architects Home, a virtual showhome. While not filled with features it gives an impression of what a real architects tool could be created for VR systems and used commercially. It costs 8.54KR in the Viveport store.
https://www.viveport.com/apps/f3fbee75-d37b-4877-a263-2843419...
Onion Room is similar to the above, but available for free. Could be good to showcase the Real Estate applications of VR tech.
https://www.viveport.com/apps/adec7741-2d6b-4f78-b890-6750a63...
VR Kitchen Experience shows what could be done for Kitchen Fitter retailers, similar to the IKEA app. It is available for free on the Viveport Store.
https://www.viveport.com/apps/994d7f13-61aa-4bd2-9f02-73832f7...
The Body VR is an educational experience that allows the user to learn about the internal systems of the human body. It is a good showcase of how educational applications of the technology could be used. it is available for free at Viveport.
This is just a few select apps that could showcase various things, there are many more and some other important ones I may have missed. Check out https://www.viveport.com/ and see the whole range.
Thanks and I hope this is of some help to you.