The best replacement for lovebird is parakeet.

The best alternatives to lovebird are rated as following:
★★★★★  parakeet
★★★★★  cockatiel
★★★★★  parrotlet
★★★  budgie
★★★  conure
★★  green cheek conure
★  sun conure
★  quaker parrot
★  canary
★  quaker
★  kenari
★  ringneck
  lineolated parakeet
  green cheek

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

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



Google Trends

Scale is based on the average worldwide traffic of lovebird in all years. Click on graph for more.
lovebird
parakeet
cockatiel