No one can answer this question for sure because we can't predict a crypto price definitely. Even ETH or BNB has no guarantee that their prices to soar like a rocket in the next 5 years. Crypto coins are always unpredictable, the price history or current good news about the coins, cannot guarantee the future price of that coins. However, if you want to hold around 5 years or more, better to choose top altcoins such as ETH, BNB, DOT, SOL, ADA, or XRP.
Depending with kinds coins holding how to be millionaire five or several years later, if holding coin trough have reach all time high price difficult to be millionaire although seven years keep holding assets. Maybe still worth when holding potential coins on early time launch to public or buy on pre sale, but keep need checking with potential coin or not for investing before scam later. Holding coins more than 5 years need patience and better deleted all exchange application and never access to exchange market to know with price.