The best replacement for tpg is iinet.

The best alternatives to tpg are rated as following:
★★★★★  iinet
★★★★  dodo
★★★★  optus
★★★★  internode
★★★★  telstra
★★★  exetel
★★★  iprimus
★★  amaysim
★★  bigpond
★★  optus broadband
★★  kkr
★  vaya
★  live connected
★  optus internet
★  kogan
  spintel
  adam internet
  awm
  telstra internet
  dodo adsl2+
  telstra adsl2+

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

Other search terms related to tpg and their ratings are:
★★★★★ optus
★★★ nbn
★★ foxtel
★★ homeline budget
★ telstra
★ telstra homeline budget
You have in mind a companion for tpg and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of tpg in all years. Click on graph for more.
tpg
iinet
dodo