The best replacement for jomsocial is community builder.

The best alternatives to jomsocial are rated as following:
★★★★★  community builder
★★★★  buddypress
★★★  easysocial
★★  phpfox
★★  elgg
★  drupal commons
★  cb
★  ning
★  socialengine
  social engine
  boonex

Your alternative for jomsocial is not listed? Suggest!
Speaking about jomsocial, one probably shouldn't forget about k2.

Other search terms related to jomsocial and their ratings are:
★★★★★ k2
You have in mind a companion for jomsocial and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of jomsocial in all years. Click on graph for more.
jomsocial
community builder
buddypress