This is a collection of neosnippet snippets I use. No guarantees!
Plug 'Shougo/neosnippet.vim'
Plug 'pbondoer/vim-snippets'
" ...
let g:neosnippet#snippets_directory = globpath(&rtp, 'snippets')
I would recommend having deoplete as well.
These will build up over time as I find patterns I frequently type out by hand.
They are intended to be personal, but feel free to use them. Just know I probably won't be supporting your specific use-cases!
Unless otherwise specified, these are under CC0.