The best replacement for lacp is pagp.

The best alternatives to lacp are rated as following:
★★★★★  pagp
★★★★  trunk
★★★★  etherchannel
★★★  lag
★★  port channel
★★  802.3ad
★★  etherchannel cisco
★★  trunk hp
★★  link aggregation
★  static teaming
★  static trunk
★  balance-alb
  static link aggregation
  load balance
  switch independent
  static port channel
  mlt

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

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



Google Trends

Scale is based on the average worldwide traffic of lacp in all years. Click on graph for more.
lacp
pagp
trunk