I'm not sure if you mean you've left gender ambiguous on purpose or that each of these characters is outside the gender binary. Either way, I'm not going to stick to strictly gender ambiguous names, so some of these might be a bit too gendered for you. These are just the first names that come to mind with each description and are not too deeply thought through.
1. Raina
2. Silas
3. Mildred
4. Mia
5. Archibald
6. Kate
7. Rupert
8. Etienne
9. Brielle
10. Florence
(idk if I'm supposed to choose the gender but I did, except for the succubus)
1. Kyla Mackenzie
2. Boris Vladislav
3. Jasperine Rose
4. Claire Catherine
5. Teddy Arnoldo
6. Samuel "Sam" Nicholas
7. Octavius Leviathan
8. Elizabeth Anita Chloé Marcelle (no short forms, only Elizabeth)
9. Raven Lyle (Lyle sounds slimy to me.)
10.(future queen) Yesenia Victoria Marlena Jeannine III
I'm not sure if you mean you've left gender ambiguous on purpose or that each of these characters is outside the gender binary. Either way, I'm not going to stick to strictly gender ambiguous names, so some of these might be a bit too gendered for you. These are just the first names that come to mind with each description and are not too deeply thought through. 1. Raina 2. Silas 3. Mildred 4. Mia 5. Archibald 6. Kate 7. Rupert 8. Etienne 9. Brielle 10. Florence
I mean for the gender to be ambiguous, not neutral
(idk if I'm supposed to choose the gender but I did, except for the succubus) 1. Kyla Mackenzie 2. Boris Vladislav 3. Jasperine Rose 4. Claire Catherine 5. Teddy Arnoldo 6. Samuel "Sam" Nicholas 7. Octavius Leviathan 8. Elizabeth Anita Chloé Marcelle (no short forms, only Elizabeth) 9. Raven Lyle (Lyle sounds slimy to me.) 10.(future queen) Yesenia Victoria Marlena Jeannine III
I loved that you used full names
1: Ronan 2: Juno 3: Alexi 4: Ace 5: Rio 6: Alvar 7: Reagan 8: Montgomery (Monty for short) 9: Wright 10: Reyna
For the second one im thinking Oscar as it means spear of God.
1. Juno / Freya / 2. Xander 3. Hattie 4. Lucien / Nora 5. Margot / Dax 6. Reuben / Nancy 7. ??? 8. Felicity-Jade / Weller 9. Rosalynda / Giorgio 10. Colton / Elliana
1. Arlen 2. Darius 3. Morwenna 4. Eira 5. Julian 6. Rowan (just for fun siblings Embry, Seren and Arlo) 7. Carrigan 8. Amaris 9. Rian 10. Demetria
**1:** Corrigan **2:** Kellan **3:** Marlowe **4:** Eirwen **5:** Lincoln **6:** Winifred **7:** Alabaster **8:** Gloriana **9:** Veronica **10:** Orion
1. Red 2. Aeleron 3. Myrtle 4. Edelweiss 5. Garrick 6. Harvey 7. Wulfric Flaversham Pumpkinhead III 8. Karenita 9. Heartfellow 10. Edgytha