Here's a SRFI browser for Emacs:
<https://github.com/srfi-explorations/emacs-srfi>

When you do `M-x srfi`, it shows a *SRFI* buffer with a list of all
SRFIs, one per line. You can type in the minibuffer to narrow the list
by number or title; the list is filtered after each keystroke.

There are shortcut keys to open the SRFI, its mailing list archive and
its GitHub repo in your web browser. Let me know if you want other features.

I'll send this to MELPA at some point for easier installation. For now:
(load-file "srfi-data.el")
(load-file "srfi.el")