For Google Sheets as of May 2023, per Keyboard shortcuts for Google Sheets:
Method 1: Data->Sort_sheet
The following only works when the pull-down menus ("command menus") are displayed:
- PC:
Alt [+ Shift] + d + s(Shiftfor non-Chrome browser) - macOS:
Ctrl + Option + d + s - Chrome OS:
Alt + d + s
...followed by a or z to run an ascending- or descending-sort, respectively.
This employs the "Open a menu" keyboard shorcut to open/run the Data->Sort_sheet->Sort_sheet_by_column ... menu command.
Method 2: Tool finder + keyboard-shortcut mapper
Possibly even better, the following works at all times, even when Google-Sheets menus are not displayed:
Run the Tool finder (formerly "search the menus") by pressing Alt + / (Windows, Chrome OS) or Option + / (macOS) and then type sort (a or sort (z plus <enter> to run an ascending- or descending-sort, respectively.
Optionally: customized keyboard shortcuts
Employ a "keyboard shortcut mapper" utility application (like BetterTouchTool on macOS) to map any of the above sequence(s)this method to an even-shorter, customized keyboard/keystoke combinations.
Platform applicability
The above applies to PC/macOS/ChromeOS ("Computer") platforms and not to mobile/Android/iOS/iPadOS, which appear to have no menu-command control nor Tool-finder utilitycombination.