The best replacement for jetfire is megatron.

The best alternatives to jetfire are rated as following:
★★★★★  megatron
★★★★  thundercracker
★★★★  starscream
★★★  fallen
★★★  skyfire
★★★  mixmaster
★★  sunstorm
★★  pool fire
  baby browning
  scorponok

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

Other search terms related to jetfire and their ratings are:
★★★★★ optimus
★★ prime
★ optimus prime toy
★ legends class optimus prime
★ optimus prime
You have in mind a companion for jetfire and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of jetfire in all years. Click on graph for more.
jetfire
megatron
thundercracker