It's not new by a long shot, of course, but I thought I should share my webring:
Autists Online! It's a webring for autistic webmasters, and aims to celebrate autistic identity and community within the indie web~! It's my first and currently only webring, so, if you're interested, check it out, and maybe apply?
Now, as for the "webring masterlist" part of the subject, I'd like to share a resource I've created!
rentry.co/webring is a little something I've put together. It aims to put together a masterlist of all Neocities-hosted webrings! It's listed in alphabetical order, and includes links to each webring and a description for their target audience. It currently includes links to
over 30 different webrings for you to check out at your leisure!
Of course, if I've missed any webrings, let me know so they can be added!