Hello. If you are referring to anime, the list is quite short.
I can suggest some explicit yuri works like:
- Kuttsukiboshi
- Shoujo Sect
- Sono Hanabira ni Kuchizuke Wo
- Valkirye Mermaid
- Sin: Nanatsu no Taizai
- Netsuzou Trap
If you are into ecchi/fanservice anime just for the sake of ecchi you can also watch:
- Queen’s Blade
- Seikon no Qwaser (side couple in a S&M relationship)
- Cross Ange (honestly I would never recommend this anime but it has lots of yuri ecchi content)
- Saikin, Imouto no Yousu ga Chotto Okashiinda ga. (this has lots of fanservice scenes and it’s not something I would recommend for quality content)
Girl’s High, Gokujyo, Hen (older shows that I haven’t watched, so I can’t really say much about it)
Sakura Trick is very sweet and has heavy kissing scenes (but probably you have already watched it) (highly recommended)
The Yuri Side 