Ecchi Manga with focus on cum and/or blowjobs

Try this:

1. Shihai suru
   
2. Imaizumin serial adaptation
   
3. Hunting isekai widow
   
4. Rod hero
   
5. Redo of healer, you probably know this
   
6. Demonic hero
   
7. Knightly harem
   
8. Sex dungeon
   
9. Manslut
   
10. "Real Farming" on isekai
    

There's more but I'll only write 10, if you want more just find the rest by yourself or just go to nhen or similar sites lmao
Ecchi manga are intended for the opposite purpose, they will focus more on the story rather than explicit scenes.