The best replacement for keepalived is haproxy.

The best alternatives to keepalived are rated as following:
★★★★★  haproxy
★★★★  ucarp
★★★★  pacemaker
★★★  heartbeat
★★  ldirectord
★★  carp
★★  ultramonkey

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

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



Google Trends

Scale is based on the average worldwide traffic of keepalived in all years. Click on graph for more.
keepalived
haproxy
ucarp