Like, LQ and MD can build a live together in the ES I just don't see happening with XS.
The problem with choosing Meng Dan is political.
Yes, he has the best chemistry with Ling Qi, despite being the opposite of her type (muscular macho Man), that we have seen so far BUT Ling Qi is most likely going to become a viscountesse at minimum, countess most likely, marquess if we make very good rolls and choices and duchesse in a 1 out thousand chance. While the Meng are already steady allies (the reformers) and are in political hotwater at of this moment, i don't see what their marriage can really bring to Ling Qi but legetimacy for her clan, but she get that with every other old count clan too, and greater ties to an already tight ally.
Xuan shi on the other end is very mild, i agree that his lack of greater goal and visible drive makes him less interressting as a character, even with his lonely orphan background, like i feel sorry for him but not too much after all he is still a ducal who received the best possible ressources and education. Still he could act as a support, a rock for LQ, both emotionaly and materialy.
Bao Qian seems like the best option so far, with ties with the richest count clan of ES, has his future path already somewhat figured out, can support her in a element she's not too interested in. Has more drive than XS but still feel down too earth despite his background. The only problem is the lack of chemistry which can come as they slowy construct their relashionship (engagements between nobles can last decades).
I think the 2 Bai's vassal could eventualy become potential candidates if LQ get more time with them but only the violet one seems compatible with LQ, the other seems too soldiery/boring for her.
Well maybe yrsillar will add new candidates yet.
[X] I would show you along the lakefront