Voyager and Enterprise and blind spots for me when it comes to Shag Counts, but I can say DS9 is horny AF.
Main Cast
Sisko: A-yup.
Kira: Hell yeah.
Odo: Totally and pan.
Quark: WITH A KLINGON! This man knows and loves pain. 😉
Bashir: Duh! And so bi. So so bi!
Jadzia: Pan, and yeah. Gets down all the time! Even with her ex, both of whom have changed genders since.
Ezri: Reserved, but she knows what's up. Also pan.
Worf: He got his dick broke on the show.
O'Brien: Almost too busy to have some fun, but he and Keiko got two kids. So oh yeah. Also: He almost has an affair!
Others
Jake: Maybe. He's a kid for most of the show, so it's hard to tell. He nearly has an affair with someone, but it's so sexually abusive.
Nog: Nah, like Geordi he's career-focused.
Rom: Hello, nurse!
Leeta: See Rom.
Kasidy: See Sisko.
Garak: Never on the show, but absolutely pan.
Dukat: Groomer.