On Fire mostly covers Passion, The Knot and Piano. Based on 1 issues we scanned in the last 6 months, these 2 newsletters cover the most similar ground. The closest match is Cultish Creative, which also writes about Piano.
Ranked by topic overlap: newsletters score higher when they share distinctive topics, not just broad ones everyone covers.
Curating Curiosity, Connecting Worlds (Since 2017)
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