Small simple plugin to display buffer names and tabpages. Also lets you rename tabs.
Use a plugin manager like vim-plug
Plug 'tveskag/buffer-tabline'
The plugin is exposed through the functions:
TablineNextBuffer,
TablinePrevBuffer,
TablineDeleBuffer,
TablineRenameTab "name",
example:
nmap <silent> <C-k> :TablineNextBuffer<CR>
nmap <silent> <C-j> :TablinePrevBuffer<CR>
nmap <silent> <C-c> :TablineDeleBuffer<CR>:TablinePrevBuffer<CR>
nmap <leader>t :TablineRenameTab '
No options. :(