Gregory B. Sadler - That Philosophy Guy mostly covers Epictetus, Marcus Aurelius and Rhetoric. Based on 2 issues we scanned in the last 6 months, these 4 newsletters cover the most similar ground. The closest match is Postanly Weekly, which also writes about Aristotle and Marcus Aurelius.
Ranked by topic overlap: newsletters score higher when they share distinctive topics, not just broad ones everyone covers.
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