So many to choose from. These are the ones that stand out to me the most:
T.M. Revolution- Resonance (Soul Eater)
T.M. Revolution- Sword Summit (Sengoku Basara 2)
Abingdon Boys School- Innocent Sorrow (D.Gray-man)
School Food Punishment- How to Go (Un-Go)
Rookiez is PUNK'D- In My World (Blue Exorcist)
An Cafe- The Hero Without A Name (Darker Than Black)
Unison Square Garden- Counter Identity (Soul Eater)
Tommy Heavenly6- PAPERMOON (Soul Eater)
SID- Ranbu no Melody (Bleach)
SID- Rain (Fullmetal Alchemist Brotherhood)
SCANDAL- HARUKAZE (Bleach)
Nakagawa Shouko- Sora-iro Days (Tengen Toppa Gurren Lagann)
Maximum the Hormone- What's Up, People?! (Death Note)
Livetune- Take Your Way (Devil Survivor 2 The Animation)
Ling Tosite Sigure- Abnormalize (Psycho-Pass)
Lia- My Soul, Your Beats! (Angel Beats!)
Kawada Mami- PSI-Missing (Toaru Majutsu no Index)
Kanon*Kanon- Calendula Requiem (Shiki)
DWB feat. Fade- One Reason (Deadman Wonderland)
Nico Touches the Walls- Matoryoshika (C-the money of soul and possibility Control)
T.M. Revolution- Resonance (Soul Eater)
T.M. Revolution- Sword Summit (Sengoku Basara 2)
Abingdon Boys School- Innocent Sorrow (D.Gray-man)
School Food Punishment- How to Go (Un-Go)
Rookiez is PUNK'D- In My World (Blue Exorcist)
An Cafe- The Hero Without A Name (Darker Than Black)
Unison Square Garden- Counter Identity (Soul Eater)
Tommy Heavenly6- PAPERMOON (Soul Eater)
SID- Ranbu no Melody (Bleach)
SID- Rain (Fullmetal Alchemist Brotherhood)
SCANDAL- HARUKAZE (Bleach)
Nakagawa Shouko- Sora-iro Days (Tengen Toppa Gurren Lagann)
Maximum the Hormone- What's Up, People?! (Death Note)
Livetune- Take Your Way (Devil Survivor 2 The Animation)
Ling Tosite Sigure- Abnormalize (Psycho-Pass)
Lia- My Soul, Your Beats! (Angel Beats!)
Kawada Mami- PSI-Missing (Toaru Majutsu no Index)
Kanon*Kanon- Calendula Requiem (Shiki)
DWB feat. Fade- One Reason (Deadman Wonderland)
Nico Touches the Walls- Matoryoshika (C-the money of soul and possibility Control)