Love Interest:
The kawaii and useless goddess~~ Aqua!!!

Or

The shy and excitable~~ Yunyun!!!

Or

The kind and caring~~ Luna!!!

Or

The kind and gentle goddess/ thief~~ Chris/ Eris!!!

Or

The serious and flustered~~ Sena!!!

Or

The princess of Belzerg~~ Iris!!!

(Usually I don't change feelings of characters but she's the one exception since Megumin and Darkness are already not gonna be in it.)

Or

The adventurous and romantic~~ Funifura!!!

Or

The adventurous and shy~~ Dodonoko!!

Or

The imaginative author~~ Arue!!!

Or

The timid and introverted~~ Lolisa!!!

Or

The undead cutie~~ Wiz!!!

Or all of them lol!

And that's pretty much it! I'm willing to add more if you guys request it, but no one from the main groups such as Darkness and Megumin since it is hinted they have a thing for Kazuma. But anyone else is fair game!