There are a number of GPS alternatives that offer different advantages and capabilities. GLONASS, Galileo, and BeiDou are satellite navigation systems that provide global coverage and can improve accuracy and reliability in areas where GPS signals may be weak or blocked. WPS and CPS are location-based services that use Wi-Fi signals and cell tower triangulation, respectively, to provide location information. Each of these alternatives has its own strengths and weaknesses, and choosing the right positioning system will depend on the specific needs and requirements of the user.