Honestly, now that i think about it, you could record everyones apex point or even just your own like how they did it in the end of s3/beginning of s4, cause holy hell, it aint hinata level considering he is shorter but you jump quite high.
Donny jumps about a foot and a quarter less . He can definitely get his eyes over the net and probably his chin but Hinata, at 5" shorter, can get HIS CHEST OVER THE NET. They never show it well in Haikyu because they always make everyone's heads look just barely over the net but doing the math and testing it myself (I'm Hinata's height and I set a tape measure to 48" and put it below an 8' ceiling) shows how insanely high he gets. No disrespect to Donny, just showing off some cool facts I learned about Hinata