There are a number of shortcuts for InDesign, and which ones you use will likely depend on your workflow and preferences. Some of the most commonly used shortcuts include:
Ctrl/Cmd + N = New Document
Ctrl/Cmd + O = Open Document
Ctrl/Cmd + S = Save Document
Ctrl/Cmd + W = Close Document
Ctrl/Cmd + P = Print Document
Ctrl/Cmd +Shift + N = New Page
Ctrl/Cmd +Shift + F = Find/Change
Ctrl/Cmd +Shift + G = Find Next
Ctrl/Cmd + D = Place
Ctrl/Cmd + T = Type
Ctrl/Cmd + B = Type on a Path
Ctrl/Cmd + Shift + drag = Duplicate
Ctrl/Cmd + J = Join Text Frames
Ctrl/Cmd + / = Turn on/off hyphenation
These are just a few of the shortcuts available in InDesign. For a more complete list, you can consult the InDesign Help documentation or search for “InDesign shortcuts” online.