Without doing a vendor review, I'll share this: Buceplant had their account banned on this forum a couple years ago for repeated smuggling and repeatedly providing falsified customs documents when asked for verification. That's not a matter that was taken lightly and the forum owners even turned down their sponsorship dollars.
For anyone buying Bucephalandra, I really encourage you to put in effort to know where the plants you're receiving were sourced. Almost no one has tank farms because they're slow growing and when they do, they're sold on forums like this. If a vendor can't give you documents to prove they were legally imported and not merely marked as "toy" or "aquarium decoration", that's a big red flag. If they can't tell you about their source so you can verify their collection practices, that's the biggest red flag. Most of the Buce-centered Facebook groups are just doing large buys from people who destroy habitats and illegally smuggle the plants. They're too expensive otherwise. There's almost never phytosanitary documentation they can provide because it's not cheap to do things properly and, well, not possible if things aren't on the up-and-up. (But if they can provide documentation and you can verify they weren't illegally collected? Good to go.)
Fortunately, tissue-cultured Buces are becoming extremely popular and widely available. So definitely check those out whenever you can. And if you can't buy tissue-cultured plants or don't want to for some strange reason? At least try to get them from a fellow hobbyist who isn't directly importing or doing high-volume sales. That weakens the demand for (usually illegal) wild collection and destruction of habitats. The further we get from wild collection and can focus on tank-grown and tissue-cultured specimens, the better.
We could argue for days over the ethics of this but the destruction is real and the smuggling, as well. We all have the means to do better and we should if we want to sustain our hobby for generations to come.
Since some unfortunately can't stop with vendor reviews, this thread is going to be locked but left intact.