Is there a list of keys which aren't mapped by default in vim?
<C-I>(This is the
<C-_>(Only active in default vim if
allowrevinsis set, for right-to-left languages)
- All function keys
Used source: https://vim.fandom.com/wiki/Unused_keys
This link points to a page listing unused keys in vim.
This page also lists keys that are synonyms of other keys in terms of functionality, meaning that these keys can be safely remapped.