What's the best position for corner kicks?

Game 15, 2021-22

After refereeing in the US for years on teams with three officials, I came to Germany seven years ago to find that due to parsimony and a chronic shortage of willing whistlers, thousands of youth and amateur games every weekend were staffed by a single referee. Among the several problems that presented (offside decisions being the main one) was the conundrum of where to stand at corner kicks.

During the very first game I reffed in this country, I was standing on the edge of the penalty area for a corner, slightly to the left of the goal. The ball was crossed, headed out, and a player shot from about 15 yards out. The shot either hit the angle of post and cross-bar, or momentarily entered the goal and came back out off the stanchion. The attacking team shouted 'Goal!' The defending team shouted back 'No way!' I shouted, 'Play on!' but to this day I have no idea if that was the right call or not. No one made a big fuss about it and the game continued - I think everyone else was just as clueless as I was.