if you have doubts about altcoin, you should avoid it is the most appropriate thing. it's just that, I feel that the potential for altcoin is currently greater than bitcoin. however, if there is still a bit of interest in altcoin, you should choose the top 10 altcoins. it will allay the suspicion we have.
It is a really huge statement, the potential of top altcoin could be greater than bitcoin and you can only speculate but with the case with bitcoin you do not need to speculate as the market will move higher with time and the market is developing at a constant pace and the trading volume is increasing every year.