Over the past two years where I’ve been using Neovim exclusively, I settled upon a few keybindings that I found on the internet and that I came to appreciate. I should note that I am now using Telescope instead of vim-fzf, and so many mappings are provided by this Neovim plugin:

• <C-s> in insert mode, this is used to correct the last typo (using the first suggestion) while in normal mode it allows to replace the word under the cursor.¹
• <C-p> to navigate files (Telescope find_files).
• <C-q> calls a little function to close or open the quickfix (if there’re some items to show).
• <leader>g and <leader>G to quickly check git status (for the whole directory or the current buffer).
• <C-f> as a shortcut for Telescope live_grep; using the Ivy theme and a 20% window at the bottom, it really shines. See the screenshot at the end of the post.
• <C-x> is actually a shortcut for "_dP, and it is pretty cool since it allows to visually select a region and paste it over and over again on visual blocks selected afterwards.
• <C-h>, <C-j>, <C-k> and <C-l> to increase/decrease split width or height (e.g., <C-h> stands for :vertical resize -4<CR>).
• <C-Left> and <C-Right> to navigate between tabs, since I can use w/b and W/B for horizontal word-wise motion. I also use <localleader><tab> to create new tabs.
• <leader><leader> to switch between opened buffers (Telescope buffers). Note that <C-b> would be better, but it’s already the primary key for Tmux and I became used to the space-space combo after 3 years of Doom Emacs.
• <leader>e which is basically :e <C-R>=expand("%:p:h") . "/" <CR>; I used it most of the day, since it allows to quickly open a file in the current working directory, with tab completion.
• <leader>r as a shortcut for Telescope oldfiles.
• <leader>$ and <leader>! to open a terminal in a new tab or in a split, respectively.
• <localleader>s or <localleader>S to sort a region in lexicographic order (increasing or decreasing).²
• <localleader>" for Neogen

See also this related post: Custom Vim shortcuts (2/n).

In addition to the above, I also have handy shortcuts for Magma, vim-surround-like stuff,³ etc.

Finally, I don’t really like or need snippet engines, so I just defined some handy abbreviations, like this:

iabbrev +w []()
iabbrev +@ chl@aliquote.org
iabbrev +% --8<--------<CR>-------->8--<Up>
iabbrev +' ``
iabbrev +" ```<CR><CR>```<Esc>2k
iabbrev +:: ¯\_(ツ)_/¯
iabbrev +:( ಠ_ಠ
iabbrev +:) ಠ‿ಠ