The best replacement for phpmyadmin is adminer.

The best alternatives to phpmyadmin are rated as following:
★★★★★  adminer
★★★★★  navicat
★★★  webmin
★★★  sqlyog
★★  chive
★★  sqlbuddy
★★  cpanel
★★  sequel pro
★★  mysql workbench
★★  mysql command line
★  phppgadmin
★  mysql administrator
★  heidisql
  sqlite manager
  query browser
  mysql admin

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

Other search terms related to phpmyadmin and their ratings are:
★★★★★ mysql
★★★★★ mariadb
★★★ amazon rds
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Google Trends

Scale is based on the average worldwide traffic of phpmyadmin in all years. Click on graph for more.
phpmyadmin
adminer
navicat