Don't select 1 altcoin, but create a basket of altcoins. It would be much more better, because I stick to rule, don't rely on 1 alts, even it is ethereum or another top crypto.
You give the right advice, but it is also important not to get carried away with a variety of coins, you need to clearly understand what you buy, buy all the top coins are not the best solution, because not all of them are reliable in terms of profit
We are all buy promising altcoin, But market is depends on current circulation of crypto platform. So we are all not expecting the profit in altcoin investment and Bitcoin condition also too bad in recent days so we buy and hold the altcoin in long term investment it is a right move. But Ethereum is a best altcoin for today because it will jump to 10 percentage in single day.