The Mother of all Shitcoins, Ripple, is overvalued by a factor of 100. Such a shame so many were duped into thinking it was a good coin.
Other overvalued shitcoins include BitcoinCash, BitcoinGold, Dash, Verge and the ponzi Bitconnnect.
Other overvalued coins (that are still good) are Cardano, Stellar Lumens, IOTA and RaiBlocks.