With so many drow in the plot I love all the extra bits of flavor with mentions to Lolth and Elistraee. Especially if you play a Lolth sworn/seldarin drow or a cleric to either of those goddesses. Personally I would love if we could also throw Vhaeraun in as a deity choice. He's the drow god of thievery, shadow magic, and drow males (because he thought male and female drow were equal). If you want you can read his full wiki article here:
https://forgottenrealms.fandom.com/wiki/Vhaeraun Now the reason I labeled this post "and potentially others to the deity list" is because I figured that if there were any other deity choices you all thought should be added you could leave them in the comments. Hopefully this will help the devs forget as few gods as possible in the forgotten realms.