Unfortunately most public torrent indexers tend to restrict ability to upload so it’s not quite that straightforward.

There’s a few you can investigate, let us know how it goes.

• 1337x - Not sure what their registration requirements are, if any.
• Angie Torrents - They seem to have registration/uploads, unsure of any requirements. (their website isn’t great, maybe check out the others before trying here) Might be down?
• BitSearch - Mainly a torrent DHT crawler/indexer but they do offer the ability to add new torrents to their search index (both BitSearch and SolidTorrents)
• Demonoid - I’m pretty sure registered users can upload there, keep an eye on when they open registration.
• GloTorrents - They do have specific uploading requirements so probably not for you but maybe will help others, see their forums https://forums.glodls.to/threads/uploading.5/
• SolidTorrents - Mainly a torrent DHT crawler/indexer but they do offer the ability to add new torrents to their search index (both BitSearch and SolidTorrents)
• The Pirate Bay - They have a manual registration process explained in their forums https://pirates-forum.org/Thread-New-TPB-accounts-available
• TorrentFunk - They seem to have registration/uploads, unsure of any requirements.
• YourBittorrent - They seem to have registration/uploads, unsure of any requirements.
• Ext - They have registration/uploads per https://lemmy.dbzer0.com/post/3401527

Also note that many of the russian torrent forums do seem to allow registering & posting torrents but am unsure of their specific requirements. Also non-english. (ruTracker, Rutor, etc.)

EDIT: Added Ext

EDIT: Fixed SolidTorrents link, crossed out Angie Torrents for now