DBeaver, phpMyAdmin, Navicat, Toad for Oracle, PL/SQL Developer, DataGrip, Tableplus, Beekeeper studio, Easy Query Builder, SQLeo Visual Query Builder, FlySpeed SQL Query, SQL Workbench/J, DbGate, dbForge Studio for Oracle, RazorSQL, Advanced Query Tool, Jailer, DBHawk, Toad Extension for Eclipse, Invantive Query Tool, Eclipse SQL Explorer, DBTarzan, ORBADA, dbForge Query Builder for SQL Server, SmartPredict, Friendly SQL, dbForge Fusion for Oracle are some alternatives to Oracle SQL Developer.