itch.io

Includes demos, parodies. Not all are full/really GxB (i.e NBxB or story-driven plot with light romance).

I also recommend checking out English Otome Games.

Additionally, not on itch.io (Games from Lemmasoft):

• (P)lanets - the life of normalcy has ended!
• A troll's fairy tale
• Aloners ---> 2018 Redux version on itch.io
• Boku no Shokora
• Chocolate Cage
• Destiny Voyage
• Days of the Divine
• Doki Doki Highschool Love Time
• Double Romance
• Ex Astris (Episodic)
• Far Beyond The Doki Doki in Warsaw
• Freak-Quency
• Frozen Essence
• Grinning Heart
• Heartful Chance Download link posted here.
• Ichigo-chan to Kyuugo-kun
• Idol Crush
• Ikusei Nikki
• Memoirs of an Angel (Remake in progress?)
• Midnight's Café
• Monochrome Heaven
• My Candy Love: High school, University. (Episodic, register to play.)
• Nacira
• Rei
• Senpai, Please Look at me!
• Seven Kingdoms: The Princess Problem (In progress, dev tumblr.)
• Shinobi Harisenbo 
• Skights (Episodic, cancelled. Will possibly have a RPG remake.)
• Starlight Dreamers
• Stolen Destiny
• Summer found me
• Sweet Elite (Episodic, register to play.)
• That Cheap and Sacred Thing
• un:Wanted
• Violet White Hill