The best replacement for wpml is polylang.

The best alternatives to wpml are rated as following:
★★★★★  polylang
★★★  qtranslate
★  multilingual press
★  transposh

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

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



Google Trends

Scale is based on the average worldwide traffic of wpml in all years. Click on graph for more.
wpml
polylang
qtranslate