So as requested, I began the task of writing down NPC names to give some specific examples of roleplay-friendly names. After not very long, it became apparent that sorting these names by clan was going to be difficult (in the case of Lalafell, sometimes even by gender). It's sometimes difficult to tell what clan an NPC is from because some skintones do overlap, and particularly depending on the lighting it is difficult to tell based on that. Then, many NPCs will have head gear that conceals aspects of their face that would be telling.
Though I gave it my best shot, I'm not confident the list I was working on was accurate. But it did occur to me that retainer names would be easy to work with... all in one place, and no guesswork. Took a little time, but at least these names are guaranteed accurate. It's also clear, particularly with the Lalafell and Miqote, that clans DO affect names. However, it's also very possible that regular NPCs won't strictly adhere to these conventions and they don't need to be treated as law (e.g., I think someone saw a Roegadyn named Roosting Crow).
Male
Midlander Hyur- Bernard, Sevrin, Wauter, Raffe, Geoffrey,
Highlander Hyur- Drogo, Engerrand, Wercrata, Raganfrid, Heidolf
Wildwood Elezen- Roiteloin, Quentenain, Estrelaint, Voilinaut, Sylvaintel
Duskwight Elezen- Ludovoix, Idristan, Astidien, Thievenaix, Corentiaux
Plainsfolk Lalafell- Fewon Bulion, Alza Gamilza, Mozon Dalazon, Kazai Buoyzai, Telbi Kesulbi
Dunesfolk Lalafell- Zazatyro, Chachamun, Nonomeda, Pipikkuli, Gegeruju
Seawolves Roegadyn- Khanmhar, Pfrewahl, Eyrimhus, Swygskyf, Wyrkholsk
Hellsguard Roegadyn- Bhirdraeg, Lydirfyst, Ourawann, Fraeloef, Zwynberk
Female
Midlander Hyur- Fionnuala, Placencia, Jessamine, Thomasyn, Margry,
Wildwood Elezen- Heustienne, Dennia, Raimille, Valerine, Gaidelie
Duskwight Elezen- Osaulie, Blaisie, Adaillie, Soubinie, Imailie
Plainsfolk Lalafell- Ayoyo, Ratata, Sanana, Ushushu, Yuwawa
Dunesfolk Lalafell- Popobi, Zozoi, Niniya, Bibigo, Jojolu
Sunseeker Miqote- R'bhusha, S'dhodjbi, J'ludaba, M'naago, K'wabati
Moonkeeper Miqote- Rhaq Nelhah, Miah Molkot, Wyra Lyehga, Yabi Kaatapoh, Fihpo Jakkya
Please feel free to add to this list with other NPC names.
Though I gave it my best shot, I'm not confident the list I was working on was accurate. But it did occur to me that retainer names would be easy to work with... all in one place, and no guesswork. Took a little time, but at least these names are guaranteed accurate. It's also clear, particularly with the Lalafell and Miqote, that clans DO affect names. However, it's also very possible that regular NPCs won't strictly adhere to these conventions and they don't need to be treated as law (e.g., I think someone saw a Roegadyn named Roosting Crow).
Male
Midlander Hyur- Bernard, Sevrin, Wauter, Raffe, Geoffrey,
Highlander Hyur- Drogo, Engerrand, Wercrata, Raganfrid, Heidolf
Wildwood Elezen- Roiteloin, Quentenain, Estrelaint, Voilinaut, Sylvaintel
Duskwight Elezen- Ludovoix, Idristan, Astidien, Thievenaix, Corentiaux
Plainsfolk Lalafell- Fewon Bulion, Alza Gamilza, Mozon Dalazon, Kazai Buoyzai, Telbi Kesulbi
Dunesfolk Lalafell- Zazatyro, Chachamun, Nonomeda, Pipikkuli, Gegeruju
Seawolves Roegadyn- Khanmhar, Pfrewahl, Eyrimhus, Swygskyf, Wyrkholsk
Hellsguard Roegadyn- Bhirdraeg, Lydirfyst, Ourawann, Fraeloef, Zwynberk
Female
Midlander Hyur- Fionnuala, Placencia, Jessamine, Thomasyn, Margry,
Wildwood Elezen- Heustienne, Dennia, Raimille, Valerine, Gaidelie
Duskwight Elezen- Osaulie, Blaisie, Adaillie, Soubinie, Imailie
Plainsfolk Lalafell- Ayoyo, Ratata, Sanana, Ushushu, Yuwawa
Dunesfolk Lalafell- Popobi, Zozoi, Niniya, Bibigo, Jojolu
Sunseeker Miqote- R'bhusha, S'dhodjbi, J'ludaba, M'naago, K'wabati
Moonkeeper Miqote- Rhaq Nelhah, Miah Molkot, Wyra Lyehga, Yabi Kaatapoh, Fihpo Jakkya
Please feel free to add to this list with other NPC names.