DBeaver - DBeaver - Universal Database Manager and SQL Client.
CPU Frequency Selector - Cinnamon CPU Frequency Selector Applet
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.
Udev Discover - A helping tool for udev testers, coders, hackers and consumers.
DataGrip - Tool for SQL and databases
CPU-Z - CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels.