no one's helping us, twin but read this if you haven't, it's omegaverse shounen ai tho
https://www.mangago.me/read-manga/pheromone_say_otherwise/
If you haven’t already read these, here are some that comes to mind:
https://www.mangago.me/read-manga/nekama_punch/
https://www.mangago.me/read-manga/a_shoulder_to_cry_on/
https://www.mangago.me/read-manga/semantic_error/
https://www.mangago.me/read-manga/error_analysis_report/
Hope you find one that u like :)

recommend me a completed (ongoing is fine) shounen ai with enemies to lovers or rivals tropes pls