I think it is pointless to change bitcoin to ETH or back. These are very similar coins. If you really Want to sell bitcoin and buy other coins to expand investments, then pay attention to any of these coins Nucleus Vision, Shivom.
The Bitcoin Cash rose a lot today. Is it good idea to change to some BCH?
BCH dropped a lot recently. I think it is due to the hash war between the ABC and SV. It also caused the drop of bitcoin.