Tange and Dia Compe are solid, look good and a little cheaper than the primo ones but still on the pricy side. Might want to double check a stack height before spending money though as steel headsets can be made a little shorter. I needed a short stack height threaded headset, didn’t want to spend high double digits on an aluminum one and got a steel Tange Passage. It was cheap and looks good.
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N = '96 Colnago C40, '04 Wilier Alpe D'Huez, '10 Colnago EPS, '85 Merckx Pro, '89 Merckx Century, '86 Tommasini Professional, '04 Teschner Aero FX Pro, '05 Alan Carbon Cross, '86 De Rosa Professional, '95 Gios Compact Pro, '95 Carrera Zeus, ‘81 Masi Gran Criterium, ‘81 Merckx Pro, ‘89 Cinelli Supercorsa, ‘83 Bianchi Specialissima, ‘VO Randonneur, Ritchey Breakaway Steel, Rivendell Rambouillet, Heron Randonneur, ‘92 Ciöcc Columbus EL