If Kelsier’s crew bonded Radiant Spren, my thinking is:
Vin —-> Windrunner [She literally says the Second Ideal in Well of Ascension, and also notably was uniquely attuned to Preservation: the Shard of stasis and protection]
Elend —-> Skybreaker [A lot of people say Bondsmith, which is fair for how he tries to bring together the Skaa and Nobility, but to me Skybreaker feels right for his dreams of a fair democratic code of laws. In a more ideal world he’d be a Skybreaker in my mind]
{EDIT: I see now that I subconsciously paired together a Windrunner and Skybreaker, which is really cute. It was unintentional but it definitely works for how the two are opposites but at their core are aligned in their goals}
Spook —-> Edgedancer [He’s experienced the pain attached to feeling forgotten, and he paid his dues to the commoners of Urteau in his reconnaissance]
Kelsier —-> Willshaper [His entire goal was freedom for the Skaa and the destruction of the oppressive systems of the Final Empire]
Ham —-> Stoneward [He’s a constant in the crew and among the New Empire’s most formidable warriors]
Breeze —-> Lightweaver [Deceptive, subtle: feels right]
Dockson —-> Elsecaller(?) [He was the most disciplined and rational of the crew, honestly this one I’m not certain of]
Clubs —-> Lightweaver(?) [Stoneward’s tempting, but it’s important to remember that above all Clubs was an artist]
Sazed —-> Truthwatcher [This one feels really obvious yet I don’t see it mentioned often, he’s a scholar and his entire arc in Hero of Ages was seeking truth]
OreSeur —-> Lightweaver [He was literally a spy]
TenSoon —-> Dustbringer [He’s the Kandra’s most skilled shapeshifter]