the seibertron.com fantasy battle one. ive looked around here and there doesnt seem to be anything specifitally transformer related. if your looking for versus the fantasy battle forum at seibertron is good, if its just transformer stuff they have a few for that too. although the transformer comics were done by marvel people dont seem to like the threads being put here.
Hmmm...Do Transformers have comics?? If so, then you can post threads here on them. Otherwise, maybe the games forum. Or simply the off-topic forum or general discussion forum, where there's basically no rules about thread starting (within reason).
Hope that helps, though I have to close this thread now.