Everything is undervalued right now, even with Stellar Lumens you can make a x2 as soon as everything recovers back to normal again. The same for NEO, and a few other coins like ETH too.
I can say that nearly all coins currently are undervalued at a certain point, - they have a crazy potential to grow x2-3 times minimum.
I agree with you. Now is a good time to buy and wait.
But Bitcoin is going up first.