What majors are similar to computer science?

Here are some business-oriented majors that are similar to computer science: Information systems is a major that focuses on the use of technology to solve business problems. Students in this major learn how to design, implement, and manage information systems in organizations.

What's a good alternative to CS?

A more distant alternative is Computer Engineering but beware, that major is about half electrical engineering so you better enjoy the hardware aspect if you plan to major in that. You'll still mostly have the same job opportunities except it may be harder to find a pure software position than if you were strictly CS.

What majors overlap with computer science?

In short: Majors like information systems, software engineering, and computational math overlap significantly with computer science, while fields like cognitive science, digital media, and computational biology apply coding to other domains.