As a medium-sharp vinegar, apple cider vinegar is easygoing when it comes to being substituted. It is almost always a quick 1:1 replacement. You may not find its exact fruity, acidic pitch in these substitutes, but you’ll make a vinegar chicken, or salad dressing, or cheesy chickpea omelet here that lets the show go on. Call it an understudy, dinner edition.
So: Is there a “best” apple cider vinegar substitute? It really comes down to which element of apple cider vinegar you want to replace most: the fruitiness, sweetness, or the sharpness.