Ysolda Teague Ysolda Patterns - Opari is a similar pattern: hats and more garment, for unisex, and dk (21-24 sts/4 in) yarn gauge. You may also like Spud & Chloe Patterns - Crabby Cap, which is another similar pattern: 20 (5 sts. / inch) finished gauge, hats and more garment, and for unisex.
You may enjoy taking a look at the Debbie Bliss Cashmerino Aran Head To Head Hats, and Rowan Big Wool Bulky Earflap Hat kits all using KnittinIt Patterns.
Hopefully our suggested yarn options for Head to Head can help you come up with your next exciting new project idea!