Bitcoin itself is already a crowned as the best crypto to invest in and has been with us for more than a decade already, it might be a bumpy road to all who have invested into bitcoin but all of those challenges did always come to an end because after every rain (dips), light will always prevail. To summarize, bitcoin is the greatest and the most worthy coin to invest with, and it is good for long term investments rather than letting your funds sit on the bank. If you as an investor is inclined to invest into other coins, you can always do your own research to identify which is the best coin that will suit you.