Well, as of the latest chapters I know, Bakugo's romantic ending hasn't been clearly depicted. Maybe it'll be revealed in future developments of the manga.
Sorry, I don't have the exact answer. You might need to keep following the manga to find out.
In the manga, Masamune's romantic journey leads him to end up with Sayuri. Their relationship develops through various challenges and sweet moments.
In the manga, Haruhi ends up with Tamaki. Their relationship develops throughout the story.
I'm not sure. It might depend on the author's creative decisions and the development of the story.
In the manga, Senku doesn't end up with anyone in a traditional romantic sense. His focus is mainly on science and saving the world.
In the manga, Mikasa's story doesn't have a traditional romantic ending. Her relationship with others is complex and not centered around a romantic partner. She's primarily driven by her loyalty and duty towards Eren and her comrades.
As of the latest manga chapters, Asta hasn't ended up with anyone yet.
I'm not sure. It's not been clearly shown or revealed yet.
Tomozaki ends up with Hinami in the manga. Their relationship develops gradually throughout the story.
Tanjiro doesn't end up with anyone romantically in the manga. The focus is mainly on his quest to defeat demons and save his sister.
I don't know for sure. The ending of such a manga can be quite unpredictable and might not have been revealed yet. You could try discussing it with other fans to get their speculations.