I would suggest you don’t go for any altcoins.
Go for the real OG Bitcoins.
There are many reasons for which Bitcoins will be the perfect coin for investment.
Bitcoins are in cheaper price now, so many people are buying it.
So once Bitcoins will start increasing in price, more people will be interested in buying the coin.
And as the demand will increase and the supply is limited, so definitely the price will skyrocket.
Moreover many crypto veterans have already predicted that Bitcoins will soon break his all time high price in this year.
Rest is upto you OP.