"To brainstorm a solution" means to generate as many ideas as possible to find a solution to a problem or challenge. It involves free-thinking and creativity to come up with multiple potential options. Full definition
Teach problem - solving skills by brainstorming solutions together. (verywellfamily.com)
You can begin brainstorming solutions before the new employee arrives. (blog.simplyhired.com)
Plus when it's sunny and gorgeous this girl wants to sip out to happy hour on a comfy patio instead of brainstorming a solution to the photo problem. (lindsayliving.com)