My suggestion for you to have best investment is in Etherium coin , Digibyte coin , Etherium classic , posw , blry , Pak ,wave coin , TMRW , ripple , monero , denta etc .
I am saying to have these coins for long term investment Because these have not much high price than what at they should be , so we should have these coin currently to have for long term .
And also beside these coins which have high market are bytecoin , xvg , sprt , xev coin , Sia coin are better for short term as well as long term investment .