how about just one..litecoin
lol that is very naive form you, you mean bitcoin? litecoin is doomed no matter what project they bring , because its too old and no one care anymore, it's only good as a pump and dump, i'll buy each time there is an halving incoming there and that's it
bitcoin is obviously the only thing that has the highest chance of survival and with a big difference than the second top.
i am not a litecoin supporter but i don't think it is doomed at all. only because it has been surviving all these years and the survival was not like other altcoins from prices like 0.01 to 0.0000001 it has actually been pretty stable around 0.0055-0.008
BTC for most of its lifetime.