Here are some name suggestions based on your description, playing with different aspects of his character:

Names emphasizing speed and strength:

• Velocity Wolf: Direct and impactful, highlighting his wolf-like speed.
• Swift Fang: Short, sharp, and evocative of both speed and his wolf quirk.
• Brute Speed: Contrasting words that capture his power and agility.
• Lupus Velox: Latin for "swift wolf," adding a sophisticated touch.
• Kento Shinkoku: (Ken-toh Shin-ko-ku) Japanese inspired, "Kento" meaning "strong sword" and "Shinkoku" suggesting speed or swiftness.

Names reflecting his wolf-like nature:

• Fenrir Aizawa: A nod to the Norse wolf god, incorporating Aizawa's name.
• Shadow Howl: Mysterious and evocative of a wolf's call.
• Greywind: Simple, elegant, and suggestive of a wolf's coat.
• Lone Wolf: Emphasizes his independent nature.
• Akira Ōkami: (Ah-kee-rah Oh-kah-mee) Japanese inspired, "Akira" meaning "bright" and "Ōkami" meaning "wolf god."

Names incorporating his appearance and personality:

• Asher Green: Combines the color of his eyes with a common name, suggesting a hidden depth.
• Rhys Blackwood: "Rhys" is a Welsh name meaning "ardor," fitting his passionate nature, while "Blackwood" hints at his serious demeanor.
• Kai Yamamoto: (Kai Yah-mah-moh-toh) Japanese inspired, "Kai" meaning "ocean" or "sea," reflecting his deep green eyes, and "Yamamoto" meaning "first son of the mountain," suggesting strength and stature.

Names hinting at his parents (Aizawa & Hizashi):

• Shouta Hizashi: A simple combination of his parents' names.
• Ken Hizashi: A shorter, more impactful version.
• Shota Aizawa Jr.: A straightforward approach.

Names that are more unique and creative:

• Zenith Howler: A powerful and evocative name.
• Nightshade Fang: Mysterious and dangerous-sounding.
• Silas Stormchaser: Suggests speed and power.

Remember to consider the overall tone and style of your story when making your final choice. You can also combine elements from different names to create something entirely new.