Any recommendations of yaoi with characters having dynamic and strong personality... Kinda...

Have you read Mad Dog? I just finished it and really enjoyed it. I would say the main two characters have pretty strong personalities, as well as they are on sorta bad terms. I wouldn’t quite say rival or enemies, but they don’t get along the best and it’s actually so funny. Spoiler: they do become lovers ;)
I really enjoyed the overall story, probably within my top 5 reads, so I’d definitely give it a go if you’re interested! It’s kinda dark (mafia themed), which I honestly think made it better!!
If you decide to read it or already have, than I hoped you enjoy it!!

https://www.mangago.zone/read-manga/junketsu_drop/

https://www.mangago.zone/read-manga/i_m_banging_my_rival_from_a_parallel_world/

https://www.mangago.zone/read-manga/love_debugging/

https://www.mangago.zone/read-manga/smyrna_capri/

https://www.mangago.zone/read-manga/semantic_error/

https://www.mangago.zone/read-manga/hinekure_chaser/
Bullies seme’s friend to get his attention

https://www.mangago.zone/read-manga/ameiro_paradox/

Thank you so muxh(≧∀≦)

Thanks for the recomsლ(´ڡ`ლ)

Of course :))