Hey that's my old thread. I'll answer as much as I can here.
Berlins has no gay strip clubs. There is a MAJOR gay club scene with literally every type of fetish available, I think it makes strip clubs a little unnecessary. LAB.Oratory nightclub is infamous. Expect to have sex and definitely witness all kinds of sex, depending on the theme that night, including fisting, pissing and scat. I went on "jock" night, where the dress code was jockstraps or athletic gear. That's probably the tamest theme. I think a couple of clubs have live sex shows, and there are frequently annual events that have them. I believe one of the gay saunas might.
Escort scene is also surprisingly thin, though I did meet a fantastic Belami actor. As far hustler bars go: DO NOT GO. It's not safe. There used to be three. One of them was relatively on the safer side. It closed down along with another. I think Tobasco is still standing. You will likely get robbed, or worse. The hustlers are all Turkish migrants, and they are straight (not gay for pay). I went, inadvertently thinking it was the safer club that remained open. I was lucky enough to hold my own, only because I pass for Turkish. I drink my beer and bolted.
Saunas are co-ed and naked. Vabali sauna is amazing. Worth it, especially if the weather is good. Never seen so many dicks in one place. I personally absorbed as much of the city as I could on an e-bike. Very bike friendly. The zoo was nice, the museum island was amazing, and Elefant was a nice place to get schnitzel