The best replacement for glonass is gps.

The best alternatives to glonass are rated as following:
★★★★★  gps
★★★  waas
★★★  beidou
★★★  gps which is better
★★  assisted gps
★★  gps comparison
★  navstar

Your alternative for glonass is not listed? Suggest!
Speaking about glonass, one probably shouldn't forget about gps.

Other search terms related to glonass and their ratings are:
★★★★★ gps
★★★ gps antenna
You have in mind a companion for glonass and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of glonass in all years. Click on graph for more.
glonass
gps
waas