The best replacement for hide glue is titebond.

The best alternatives to hide glue are rated as following:
★★★★★  titebond
★★★★  fish glue
★★★★  wood glue
★  bone glue
★  rabbit skin glue
★  hot hide glue
  tightbond

Your alternative for hide glue is not listed? Suggest!
Speaking about hide glue, one probably shouldn't forget about veneer.

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



Google Trends

Scale is based on the average worldwide traffic of hide glue in all years. Click on graph for more.
hide glue
titebond
fish glue