I decided to track down Swell Reads that was mentioned by Dr-Black-Jack in the Doki Doki Literature Club - That Special Day post.
Here is the link to their Patreon page if anyone ends up looking for some people to do voice overs.
Hello! I run this page (management, writing, some sound design), and can confirm that we’re more than willing to do voice-overs for projects. We currently have two very talented VAs as of writing, and are currently seeking out even more.
My discord ID as mentioned on the linked Patreon page is nametaken#4664. I always keep my DM box open.