I'm looking for some works that are either from Voldemort's POV or Hermione's. Preferably for Voldemort, when he was still in school, recruiting and making connections in the ministry and such. For Hermione I have no preferences.

 

There's always Realignment. This is quite legitimately the best Tom Riddle centric fic that I can think of. It's excellent. The characterization is impeccable. The prose, plot, setting and every other story element you can think of are impossibly crisp and polished. It might not suit your preferences, since

Spoiler

Harry travels back in time to kill Riddle and it snowballs from there

but I recommend it nonetheless.

I don't know of any good Hermione-centric stories. I know many mediocre ones, but I balk at the idea of recommending mediocre stories to people.

 

The Right Hand Path my favorite Tom Riddle centric story, Merope survived to raise Tom he is still cruel and ambitious but due to Merope he is not as one dimensional and psychotic as in canon. It also is quite a joy to read Merope overcoming her meek and shy self, step for step.

The Fire Omens one of the best one shots in the fandom with amazing prose for which I usually don't care to much about and a epic feel to it.

Hermione centric there is only one good story which I have red:

Applied-Cultural-Anthropology-or Hermione sorted into Slytherin, in character Hermione though she is more talented and intelligent than in canon slowly developing into a dark witch.

Magical exploration and world building are great and the characterization is good though I have some problems with it.

Spoiler

Some scenes are just strange like Hermione doing a 180 when seeing House Elves for the first time also not a fan of Muggleborn revolution stuff