I need a plugin which can do horizontal scrolling of RSS feeds in wordpress, I have got a vertical scrolling RSS feeds but cannot find a horizontal one
Things that present headlines in a horizontal scroll tend to be called tickers. (Probably due to there resemblance to old-school ticker tape printers.)
Anyway, try these:
They should all do pretty much the same thing, but they will differ in their appearance. If you don't mind about the appearance, I would recommend the first due to the ease of management.