I find dry red wine OK, in small amounts.
Beer (which I do enjoy) has often been called "liquid bread", with good reason (IME) and my meter tells me that cider does my BG no good at all. I don't drink spirits so I can't comment on those. I suspect that port, sherry and other gloopy, fortified wines will probably have a pretty adverse effect but I'm sure other posters will chip in with their experiences, shortly