Title: I give you all of me (all of you)
Author: amjnyard
Rating: Mature
Genre: Drama/Romance/AU
Library Category: The Alternates/AU
Pairing: Harry/Tom, Harry/Voldemort, Hermione/Harry, Harry/Fred
Status: Work in Progress (16 chapters - order of the phoenix)
Summary: “I’m Harry,” she finally offers when the silence in the cupboard feels like it’s going to overwhelm her. “Harry Potter.”

There’s a warm sense of satisfaction resting in her stomach, not her own, and Harry doesn’t know why Tom seems so smug. It’s wonderful to meet you, Harry he practically purrs, sounding like he’s whispering directly into her ear.

Harry twitches, a small smile starting to grow on her face. “Are you going to help me, Tom?”

If you’ll let me. I’ll take very good care of you, Harry.

Tom Riddle starts talking to Harry when she’s six.

Link: https://archiveofourown.org/works/19810042/chapters/46904509

The concept of this story is good, basically, the Horcrux in Harry's head starts talking to her when she is six and eventually they go to Hogwarts. In second year harry meats the diary Horcrux, which is as much as I can say without spoiling the whole story.
The characters are written mostly realistically throughout the story. Harry isn't evil because of the Horcrux she behaves as one would expect her to based on nature versus nurture. Tom isn't completely canon although this is explained during the story and no Harry/Voldemort pairing ever has Tom's character completely canon.
Harry's first romance is with one Hermione Granger and her second and current relationship is with Fred Weasley. The romance is developed if only slightly, however, I suspect the author has been focusing more on the final pairing which I assume will be with Tom/Voldemort.
The general writing style is good and written mostly from Harry's perspective with one or two experts from other characters.
I would rate this fic 3.5/5 rounding to 4