How Do You Get to Yoshiwara? I've Tried Both Minowa and Minami-Senju
Short answer: the usual route is the Hibiya Line to Minowa, then about a 10-minute walk; you can also take the JR to Minami-Senju and walk or grab a taxi. From November most shops have dropped pickup, so don't assume anyone will meet you.

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Short answer: there's no station called "Yoshiwara". I usually get off at Minowa on the Hibiya Line and walk; if I don't feel like walking, I take a taxi from Nippori or Minami-Senju — the fare is whatever the meter says.
Minowa: Hibiya Line, or transfer from the Toden Arakawa Line / Nippori-Toneri Liner direction. Minami-Senju: reachable by the JR Joban Line and the Hibiya Line; the walk is a bit longer.
Once you're out of the station, navigating to the exact shop address with a map app is easiest. Each shop is a different distance away, so don't just remember the word "Yoshiwara".
Pickup: according to public information, from November 2026 several shops (including the BLUE group) have confirmed or are gradually ending station pickup. For shops that still offer it, a common meeting point used to be Nippori East Exit, but go by what support/the shop tells you on the day of your booking. Many Asakusa and Ueno pickups have already stopped.
I leave earlier than my booking time to allow for traffic and finding the way. Better to arrive early and wait at a nearby convenience store than to rush in at the last minute.
Related: My First Time in Yoshiwara: From Booking to Leaving · How to Pay in Yoshiwara: Bring Enough Cash and Relax