elpa-expand-region - 1.0.0-2 main

Expand region increases the selected region by semantic units. Just
keep pressing the 'C-=' key until it selects what you want.
The notion of "semantic" is language-sensitive.
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Example: editing
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(setq alphabet-start "abc def")
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With the cursor at the `c`, it starts by marking the entire word
`abc`, then expand to the contents of the quotes `abc def`, then to
the entire quote `"abc def"`, then to the contents of the sexp `setq
alphabet-start "abc def"` and finally to the entire sexp.