People have already suggested Farside, but I’ve chosen not to use it. The reason is that, as far as I can tell, it only looks for instances that are online. It doesn’t check which instance can actually display the given video, meaning that if a video cannot be displayed in the region of the invidious instance that Farside redirects to, users might have to manually look for other links. That’s why I’ve chosen three Invidious instances from different regions.