The best replacement for multicast is unicast.

The best alternatives to multicast are rated as following:
★★★★★  unicast
★★★★  broadcast
★★★  unicast nlb
★★  udp
★★  simulcast
★★  tcp
★★  unicast streaming
★  anycast
★  unicast ghost
★  directed broadcast
★  unicast weblogic
★  broadcast udp
★  unicast vmware
★  igmp multicast
  directed broadcast ghost
  conditional split
  unicast address
  hls
  multiple unicasting
  multicast
  unicast and broadcast

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

Other search terms related to multicast and their ratings are:
★★★★★ iperf
★★★★ mdt 2010
You have in mind a companion for multicast and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of multicast in all years. Click on graph for more.
multicast
unicast
broadcast