If you don't already know who Blaze is I'm gonna put her character bio from Sonic Channel and Sonic 2006 for safe keeping.

Sonic Channel:

The princess of the “Sol Empire” of another world and the guardian of the treasured article, the “Sol Emeralds.” Possessing the power to manipulate flames, she takes action herself when the world and its people face crisis.

Usually calm and composed, though this composure seems to mask emotions held in check by her rational mind. Her dedication to her role as guardian of the Sol Emeralds leads her to impose strict discipline and constraints upon herself, making her somewhat shy around others. However, meeting Sonic and the others appears to have begun changing Blaze’s mindset.

By gathering all seven Sol Emeralds, she can transform into “Burning Blaze.”

Sonic 2006:

Blaze styles herself as protector and controller of the Sol Emeralds (which are antithetical to the Chaos Emeralds). She comes from another dimension, where she plays a role similar to that of Sonic and Knuckles combined. 

Normally very cool and collected, deep down, she harbors very real emotions. If she is angered and loses her composure, she can be a frightening woman indeed. She is shy and withdrawn, and puts up walls between herself and other people. (As a result, she ends up building up upon her own secret feelings.) 

Typcially, she wears a cape. This is to hide the fact that her body can control flames, which she was treated strangely for when she was younger, and so she makes a point to only use it when necessary. When push comes to show, though, she will toss of her cape and become quite proactive indeed. She has a rather unique costume on under her cape, and it also seems that she is bothered by underendowed chest (comments on which will rouse her anger).

For a reference of the voice I want you to imitate here's a playlist with all Sonic games in Japanese.

Solebinku's Personal Direction:

Now Blaze is a alto with a calm voice but it can perk up when making an insult or a strong yell. She's a reserved princess who learns to open up and can now speak freely with the friends she's made. She's kind of proper but not fully, the idea of being a princess is something she never calls herself but is serious when it comes to this duty.

Blaze is a fun one to do because she's not a quiet girl by choice but becomes more casual with a stern feel at times. Look at the Japanese for a good reference.

Game Cutscenes:

https://youtube.com/playlist?list=PLhnIPa8XAn7x6g8UvkO0UaiTHtK-VBUbd&si=gTudY2rorUzd7vGB

General Blaze voice lines.

https://youtu.be/-bviWwCEDJU?si=_XqpeeH4UolM9B0w

https://youtu.be/xpmEGgsqM4k?si=0wKOOuNH19GsSkll

https://youtu.be/Lxpe9vypVdE?si=9EHOX53QlkITRUD8

https://youtu.be/ji4OBC6X-Hw?si=UMiNT7rZ4R3Ri8DC

https://youtu.be/2tPpXqGjgk0?si=q9h0gRjgkAA6EZrP

https://youtu.be/3gwpAj17r-g?si=EU6OGa0EOVY3Hpli

If you want to learn more about the character I made a video for her on my YouTube channel:

(Not happening yet sadly...)