As of July 21, here are the candidates who have announced their campaign for her seat.
Alejandra Salinas

“Houston is a strong and resilient city with hard-working families and individuals,” Salinas said in the news release. “I am fighting for what my neighbors want and every Houstonian deserves—safer neighborhoods, affordable and reliable city services and a strong infrastructure that keeps the lights on and keeps floodwaters out of our homes and cars.”
Salinas has been endorsed by Houston council members Sallie Alcorn and Joaquin Martinez, as well as Harris County Commissioner Adrian Garcia, Harris County District Attorney Sean Teare and U.S. Rep. Sylvia Garcia, according to her campaign’s website.
Dwight Boykins

Boykins has been endorsed by former U.S. Representative Beto O'Rourke, according to a July 14 Facebook post.
Obes Nwabara

Nwabara’s campaign surrounds providing residents more access to reliable public transportation, cleaner drinking water and economic opportunities to build a secure future.
He has been endorsed by State Board of Education Member Staci Childs and Harris County Democratic Precinct Chairs David Galbin, Michelle Palmer and Rosalind Caesar, according to his campaign’s website.
Al Lloyd

Lloyd’s campaign focuses on enhancing public safety, “building a safer, smarter and more equitable Houston” and making city services more accessible.
Something to know
An At-Large council member is someone who represents and works on issues surrounding the entire city. Whereas district council members represent a specific area in the city, such as council member Abbie Kamin who represents District C, which encompasses neighborhoods like the Heights and Montrose.
An official date for the election has not been announced yet, but many candidates expect the election to be held on Nov. 4. Plummer will hold her seat until a new candidate is elected.