I do not know anything about anything. But I hold these coins; all in very small amounts:
BTC
LTC
MANNA
STEEM
SBD
SUP
SWIFT
I haven't bought any of these. It all came from blogging at steemit.
The one I like the best is LTC since it has a good market, cheap fees, fast speed, and people use it for transactions.
I also like LTC coin but the last dump makes me impatient with the top coin.