Other known Leo
Sasuke Uchiha - Naruto
Aqua - Konosuba
Yato - Noragami
Taiga Aisaka - Torodora
Hana Uzaki - Uzaki-Chan Wants to Hang Out
Faye Valentine - Cowboy Bebop
Nico Yazawa - Love Live
Mizuki Himeji - Baka + Test
Sakura Shinguji - Sakura Wars
Maya Natsume - Tenjo Tenge
Akeno Himejima - High School DXD
Mt.Lady - My Hero Academia
Allenby Beardsley - G Gundam
Grimmjow Jaegerjaques - Bleach
Kusuo Saiki - The Disasterous Life of Saiki K
Kurisu Makise - Steins Gate
Lunamaria Hawke - Gundam Seed Destiny
Hikaru Shidou - Magic Knight Rayearth
Misuzu Kamio - Air
Anzu Mazaki - Yu-Gi-Oh

Leo's are known to be vivacious, theatrical, passionate and love to bask in the spotlight and celebrate themselves, make no mistake their ego and pride drives them; while this better describes Vegeta, Bulma was ultimately the one who tamed the Prince of Saiyans, in Vegeta's own words, Saiyan men prefer tough women and Bulma despite having no combat experience continues to be relevant in the Dragonball canon from beginning to end, even Goku who isn't book smart thinks that Bulma and Vegeta are a good match for their stubbornness alone.