Avery Dennison is a very good brand of vinyl as well.
Another option would be to go full OEM and get the window trim from an RST model Tahoe or Suburban. It’s a bit more expensive of course, about $550-$600 in parts, but it’s also a permanent solution.
Post #41 has the part list:
Clarifying that you have the short wheel base helps, it was unclear which wheelbase you have in your post#38. There are different part numbers for each the short wheel base and the long wheel base, this is because the rear doors are different from each other. That being said the part #'s for...
www.tahoeyukonforum.com
I actually looked up these part numbers just earlier this week and they are in fact still available. At one point a few months ago they were out of stock.