The best replacement for pry is irb.

The best alternatives to pry are rated as following:
★★★★★  irb
★★★★  debugger
★★★★  prise
★★★  byebug
★★  frank larson
★  prize

Your alternative for pry is not listed? Suggest!
Speaking about pry, one probably shouldn't forget about rails console.

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



Google Trends

Scale is based on the average worldwide traffic of pry in all years. Click on graph for more.
pry
irb
debugger