For now, my first choices among altcoins to HODL are Ethereum (ETH), Chainlink (LINK), Binance Coin (BNB) and Polkadot (DOT). Ethereum price is already on a superb run. It continues to increase even while Bitcoin price is decreasing or standing still. BNB price is also on the rise and I believe in it thanks to Binance exchange. And I think that LINK and DOT have also a very bright future. I see LINK one step ahead because of having limited max supply.