Bitcoin has always been the first choice even though the current price of Bitcoin continues to fall but I never doubt the price will go up again,
it's only a matter of time so the most important thing is that we have to be patient to wait for it,
besides Bitcoin I think the coin worth buying is the top altcoin
I will probably be selective of the top 10 coins for the best coins other than bitcoin on the priority list, I may not get a second chance to buy at the lowest price because all the top altcoins are very potential to be added to the portfolio.