The best replacement for texmaker is texstudio.

The best alternatives to texmaker are rated as following:
★★★★★  texstudio
★★★★  texworks
★★★★  texniccenter
★★★★  texshop
★★★  kile
★★★  lyx
★★  texlive
★★  gummi
★★  texmakerx
★  texpad
★  winedt
★  mactex
  texlipse

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

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



Google Trends

Scale is based on the average worldwide traffic of texmaker in all years. Click on graph for more.
texmaker
texstudio
texworks