The best replacement for nginx is apache.

The best alternatives to nginx are rated as following:
★★★★★  apache
★★★★  lighttpd
★★  varnish
★★  haproxy
★  cherokee
★  iis
★  node.js
★  apache php
★  squid
★  apache wordpress
★  node
★  tomcat
★  litespeed
  unicorn
  apache security
  apache2
  apache 2.4
  yaws
  jetty
  apache rails
  haproxy load balancing
  passenger
  apache proxy
  apache speed
  apache event
  apache httpd
  f5
  lighty

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

Other search terms related to nginx and their ratings are:
★★★★★ apache
★★★★★ php
★★★★ ssl
★★★ php-fpm
★★★ django
★★★ wordpress
★★★ passenger
★★★ node
★★ fastcgi
★★ unicorn
★ tomcat
★ flask
★ ipv6
★ perl
★ uwsgi
★ haproxy
★ gunicorn
spdy
drupal
varnish
pcre
plesk
You have in mind a companion for nginx and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nginx in all years. Click on graph for more.
nginx
apache
lighttpd