Harley Quinn faints from drowning and she' saved by Cosmonut

Ghostmaker puts to sleep Harley during a fight against Batman.

Crystal and Medusa are KO'd.

Medusa is shot in the back and dragged away.

Nova knocks out Kaldera. Source: ComicOnlinefree.com

Medusa is in bondage.

The Invisible Wonan is zapped and unconscious,

Queen Adora is blasted and falls unconscious.

Quick spray gas KO. Also known as Transister ni Venus.

The widow is rendered unconscious with a sort of under-skin device.

The Young Justice Team has been knocked out by Red Tornado. Source: ReadComicsOnline.ru

Thunder gets drowned and revived.

Titania knocks out She-Hulk Source: ComicOnlinefree.com

She-Hulk gets knocked out via electricity by a robot (dunno whether this counts as M/F). Source: ComicOnlinefree.com

Crush knocks out Shimmer and Superboy carries her away. Source: ReadComicsOnline

Wonder Woman is cradling a beautiful woman.. love her pose.. with her knees close together Source: online

The War Goddess is in a fierce fight with The Widow. After quickly getting the upper hand, she knocks her opponent out. She then flaunts her unconscious prize over her shoulder as challenges the villainess to fight her herself. Source: https://readcomiconline.to/Comic/War-Goddess/Issue-3?id=86544

A series of chloroform scenes from this French horror comic.

Teekl knocks out Raven and kidnaps her. In another story, Solomon Grundy knocks out Talia Al Ghul Source: ComicOnlinefree.com

Jacula is chloroformed. She wakes up and has sex with her attacked before being chloroformed again. This is from the Dutch translation of the Italian comic.