Quick answer — Yuuko Gotou worked on Hidamari Sketch x Honeycomb (Theme Song Performance), Sayonara Zetsubou Sensei: Nyankin no Kirisuto (Theme Song Performance), S.A: Special A (Theme Song Performance) and 6 more anime.
Yuuko Gotou worked on Hidamari Sketch x Honeycomb (Theme Song Performance), Sayonara Zetsubou Sensei: Nyankin no Kirisuto (Theme Song Performance), S.A: Special A (Theme Song Performance), The Melancholy of Haruhi-chan Suzumiya (Theme Song Performance), Kimi ga Aruji de Shitsuji ga Ore de (Theme Song Performance), Why the hell are you here, Teacher!?: Thirteenth Period (Theme Song Performance), Majikoi: Oh! Samurai Girls (Theme Song Performance), Why the hell are you here, Teacher!? (Theme Song Performance) and 1 more.