If you have a concept in mind I can think of some names. For example, Sojourn's End has a very heavy feel of relief and/or sanctuary, not terribly unlike the always famous Last Homely House. Everbrew sounds like a great name for a dwarf city. Devil's Throat is full of menace... entering there will engulf you in evil/danger, etc.
As for the guild name, I'm not sure I want to exercise opinion. However, I feel that the city name should either reflect the guild name or the guild name reflect the city name. That doesn't necessarily mean shared words or language but a common theme, even if it's vague or obscure. Sojourn's End could be a thematic match for something like The Wayfarer's Guild or maybe Knights Itinerant, referencing the nomadic/explorer parts of those names as a place where they finally found solace and ended their journey.
I think you get the idea... let me know. :P