“The most important thing to look for is a tznius’dik girl. Once you verify she is completely 100% tzanuah all the time, and you are otherwise satisfied with her, you can be almost sure all the other hashkofos issies with her will be okay. (Obviously generally check out, but these days a girl who is really tzanuah, is a top girl in everything from middos, etc.) “
Please cash a reality check. Tznius does not confer the status of a girl with good middos on anyone. It MIGHT, but there are lots of girls who dress a certain way to be tzniusdig, who are selfish, self-centered, pieces of work. Yes, Tznius is important, but even more than tznius is goodskeit, empathy, kindheartedness, and the desire to make the world a better place than we came into at birth.