Rainbow

Rainbow Dickerson is an American actress of Thai and Rappahannock (Native American) descent. She is most noted for her performance as Lily in the 2020 film Beans, for which she won the Vancouver Film Critics Circle award for Best Supporting Actress in a Canadian Film at the Vancouver Film Critics Circle Awards 2020. She will be in the upcoming Avatar:The Last Airbender live action series.

Rainbow Harvest (born 1967) is an American actress.
https://en.m.wikipedia.org/wiki/Rainbow_Harvest

In a TV miniseries "The '60s", Katie's (Julia Stiles) son was named Michael Rainbow but was nicknamed Rainbow.

Rainbow Mika from the "Street Fighter" series.

In the American TV show "Black-ish", Tracee Ellis Ross plays the Mom, her name is Rainbow but she goes by the nickname Bow. I personally like the name, maybe would use it in a middle position.

In the Canadian-American animated TV series, My Little Pony: Friendship is Magic, one of the six main characters of the Mane (Main) 6 is named Rainbow Dash. Rainbow Dash is a light-blue Pegasus pony with a multi-colored mane and tail in this series. She represents the element of loyalty.

Rainbow is a heavy metal band.

Rainbow Rowell is an American author. Books she's written include Eleanor & Park, Fangirl and many more.

Rainbow is a British children's television series, with Zippy, Bungle, George, Rod, Jane and Freddy as the main characters.

Rainbow Magic is a children's fiction brand owned by HIT Entertainment and best known for the children's books published by Orchard Books.

American model Holly Madison has a daughter named Rainbow Aurora. Personally, I think that combo sounds a bit redundant.

Rainbow Dash, a pegasus pony, is one of the main characters of the hugely popular show My Little Pony: Friendship is Magic. Her element is loyalty.

Rainbow Brite was a popular American cartoon character in the 1980s.