You might be thinking of Übermensch from Nietzsche's Thus Spoke Zarathustra. The term doppelgänger is close in that it looks like one's self, but it usually isn't considered the best version of that person.
If you aren't seeding (no one is downloading the torrent), then your bandwidth should not be used (besides a miniscule amount). So it shouldn't waste your bandwidth. Is your concern about wasting bandwidth more about seeding a torrent when there are other seeders available? So you want to prioritize torrents that have zero other seeders?
It looks like this tool Jackett (I've never used it before; just found it in a search) can be configured to allow your system to query trackers for torrents and return the number of seeders and leechers. But a lot of assembly would be required. And the freshness of results would depend on how often trackers update their stats - definitely not real-time.
For a torrent application that can do what Jackett does in real-time by connecting directly to the torrent and prioritizing bandwidth to torrents that have leechers and no other seeders, I'll leave that to others in the community more familiar with the topic.
Yeah, but it looks like there's quite a bit of cheese melted on top of two of those servings of eggs. Plus the potatoes may have been roasted with an unhealthy oil. I agree, everything in moderation. For most meals, this person should stick to one serving of bachelor chow.
Repeal and (then) Replace