If it were me I would advise him to buy a low-market-cap utility coin. Like 100k-500k market cap. He will have a lot of chances to profit if the market cap shoots upwards. Buying coins that are already millions in market cap one shouldn't not hope for a lot of profits. I bought Sora Labs and Calvin in the Cabal earlier this year and made up to 300% profit. Though I would tell the person it's not financial advice and nothing is guaranteed.