Grace Akhrem Patterns - Tangled Branches is a similar pattern: 20 (5 sts. / inch) finished gauge, hats and more garment, for women, and 220 yarn yardage. You may also like OneLoopShy Designs Patterns - Artifice Slouch, which is another similar pattern: hats and more garment, for women, and sport (24-26 sts/4 in) yarn gauge.
You may enjoy taking a look at the Blue Sky Alpacas Brushed Suri/Alpaca Silk Silk & Suri Scarf, Blue Sky Alpacas Techno La Luna Cowl, Blue Sky Alpacas Suri Merino Pangolin Cowl, and Blue Sky Alpacas Bulky Frosty Cowl kits all using Blue Sky Alpacas Traveler's Series Patterns.
Hopefully our suggested yarn options for Tri Button Cowl can help you come up with your next exciting new project idea!