There are some very specific weaves/patterns that scream “western pleasure” and not “ranch”, although you’ll definitely see some of those patterns in ranch riding, especially in more muted colors. Ranch show blankets tend to have much more variation in pattern and are specifically not the sort of vertical zig-zaggy patterns used in western pleasure.
It’s hard to explain, but if you look at Erin Rhea’s saddle blankets (https://www.saddleblanketsbyerinrhea.com/) or Saguaro (https://saguaroshowpads.com/) you’ll see that they have a “Show Line” which is what western pleasure and to some extent reiners generally use, and a “Ranch Line” which are different patterns from the show line.
The other thing is ranch blankets tend to be a little smaller in size than pleasure blankets so there’s not quite as much blanket showing around the saddle. Pleasure blankets can be up to 42" wide while ranch are usually more like 38".
Other options for ranch saddle blanket makers are Show N Glo, KD Saddle Blankets, and Yucca Flats (not a budget option).
Also just to clarify, all of those are a blanket that would go over an existing pad - some of them do offer options with a felt liner built in but the standard is just the blanket that goes over a pad.