• Kim Kitsuragi (Disco Elysium)
• The Ghost, Cez (Drăculești)
• Mithrun (Dungeon Meshi)
• Kabru (Dungeon Meshi)
• Coral Glasses (ENA Dream BBQ)
• Yomiel (Ghost Trick)
• Enoch Drebber (The Great Ace Attorney 2: Resolve)
• Adeline (Grimshire)
• Gregor, a great many NPCs (Limbus Company)†
• Agnes Tachyon (Umamusume)
• Symboli Rudolf (Umamusume)
• Noé Archiviste (Vanitas No Carte)
• Arthur Nightingale, Aoi Morohoshi, Quincy Isaacs (Warframe)
• Marie Leroux (Warframe)
• Qifrey, Olruggio (Witch Hat Atelier)
• Kiryu Kazuma, Goro Majima (Yakuza)

† While other characters are on this list because I know little about them or haven't figured out a good OC to pair with them, these characters are here because d'Artagnan is just a flirt. His only canon relationship is with Don Quixote, but I may occasionally explore dynamics of him with Gregor, or with my favorite NPCs.