With markets and vendors now accepting alt coins here are some useful tools for tumbling. I have only personally used privcoin and coinmix.to
Bitcoin Cash [BCH] Mixers 1) https://www.privcoin.io/ 2) https://coinmix.to/ 3) https://satoshimix.is/
Ethereum [ETH] Mixers 1) https://www.privcoin.io/ 2) https://ethermixer.com/ (Currently Down)
Litecoin [LTC] Mixer 1) https://www.privcoin.io/
Just use Monero??