The best replacement for lacus is cagalli.

The best alternatives to lacus are rated as following:
★★★★★  cagalli
★★★★★  fllay
★★★  flay
★★★  meer
★★  euphemia
★  lacus
★  kira and fllay

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

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



Google Trends

Scale is based on the average worldwide traffic of lacus in all years. Click on graph for more.
lacus
cagalli
fllay