Lots of options for stablecoins on Ethereum such as USDT and USDC. DAI, being decentralized, is more censorship-resistant. Then you've got other decentralized options, like HBD on Hive, and UST on Terra.
Other than stablecoins, it's hard to predict what coin is going to retain value as Bitcoin plummets. I think there are some gold-backed tokens that may provide some stability too, like DigixDAO.
In my opinion, the best long-term strategy is to focus on fundamental value, buy those tokens, hold them, and learn to identify when a market is hyped & overvalued.
Thanks @brennanhm I checked out your last video on 3speak. Some good points about having skin in the game. Il check out DigixDAO as well.