If anything for Rheinlandic unlawfuls, Unioners-Bundschuh makes the least amount of sense to me. Mainly because it'd be quite bad publicity for the Bundschuh to be working with such a group outright. They already have ties with the Hessians so that would stay, and the LWB could work, as they're pretty much the least threat in Rheinland (and the current war could lead to better PR that way).
Gaians shouldn't be allied with Corsairs. FA, sure, but not sure about Hogosha.
Mollys-Hessians makes lots of sense to me.
For the Rogues, have LH, Unioners, and Mollys? Basically, their criminal business partners (and not just distributors).
Somehow sorting out the Order would make a lot of sense, too.