I have a few from mining ETH nearly 2 years ago but that doesn't seem worth it on these cards now and one of them only has 2GB memory. Any altcoins still profitable to mine on a few 370s?
Short-term profitability depends on your power costs, although you could always hold out for cryptos going up in the long run. As adaseb mentioned, Zcash is worth looking into. I have a few 7000 series cards mining it, and it is profitable with my electricity cost of about $0.08/kWh (on average).