The best replacement for nh2 is nh3.

The best alternatives to nh2 are rated as following:
★★★★★  nh3
★★★  oh better nucleophile
★★★  oh more basic
★★★  oh which is a stronger base
★★  oh
★★  h2n
★  yamuna expressway
★  nh3+

Your alternative for nh2 is not listed? Suggest!
Speaking about nh2, one probably shouldn't forget about benzene.

Other search terms related to nh2 and their ratings are:
★★★★★ benzene
★★ benzoic acid
aromatic ring
You have in mind a companion for nh2 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nh2 in all years. Click on graph for more.
nh2
nh3
oh better nucleophile