There are many altcoin which grew around in market. With such profit, risk follows. While Altcoin is riskier when compared to bitcoin. Litecoin is older than ethereum but is an improvement to bitcoin as litecoin is four times faster than Bitcoin, it's grown to be one of the best altcoins with its current trading.
It might be a litecoin season too for bull run likewise etheruem has done in last btc halving. Apart from that, there are new altcoins whose present in the market will be a great achievement. I don't want to mention names but project are leading their coins strong lately. Lets see if the halving is going to cause a bull in altcoins.