Apparently, patreon has changed around how they're sharing files (now in a trackable way) via their rss feeds.
You can try https://kemono.su/ or SoulSeek ( a p2p file sharing application.) Also, sometimes people post things on https://tankie.tube/
Kemono is pretty good, although the episodes are often delayed with no "ETA" (no, this isn't me complaining about not getting my pirated podcasts immediately. Jumbled just had me spoiled)
If people use kemono, and want to have rss feeds, https://rsshub.app/ (free and open source) offers ways to either use their domain or selfhost, if you want, to periodically check for and grab new uploads. Just read their documentation for kemono and put the rss feeds into a podcast app. Pretty easy.
Tried to use rsshub but keep getting a "FetchError: [GET] "https://kemono.su/api/v1/posts": fetch failed" error. Do you have example feed you could post?
Here's an example from The Deprogram
https://rsshub.app/kemono/patreon/64759894
Note: If I use a VPN (as I usually do) the kemono API fails. It's possible that's an issue for you
Is jumble gone for good then or is there some sort of proxy in the works?
@[email protected] would be the one to ask, but it probably doesn't look good.
Looks like it's back up!
Ah, my fellow "checking every 5 minutes" brethren
Gotta stand by the trough so I can get the slop when it's freshest 
Feeds are active but the actual site isn't viewable
Edit: after I showed my whole ass it's working for me. All according to keikaku 
It's down again lol. Feeds are back up but site shows host error.
Where were you when Jumble was kill?
Podcast recommendations, episode discussions, and struggle sessions about which shows need to be cancelled.
Rest In Power, Michael Brooks.