I usually Invest a very small amount of bitcoin to another coin because I know this time is very crucial to invest in any new coin or even in an old coin.
Any suggestion from your side which is good for long term
if for the long term I will buy BTC or ETH depending on the use if I want to maintain my wealth with decent profits I will buy btc and eth but if I just want to build wealth I will bet on new dialtcoins which can give me 5-10x profits because there are many altcoins that can make our money multiply fairly quickly