The best replacement for bss is ess.

The best alternatives to bss are rated as following:
★★★★★  ess
★★★★  oss
★★★★  uchi
★★★★  bss plus
★★★★  data
★★★  havergal
★★  uchigatana
★  bss
★  dbx
  ibss
  branksome
  lgs
  branksome hall

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

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



Google Trends

Scale is based on the average worldwide traffic of bss in all years. Click on graph for more.
bss
ess
oss