Investing in ethereum token is I think not a good idea especially knowing how high the transaction and gas fee of the ethereum blockchain as of this moment. So I suggest that you try to take a look on plenty of binance smart chain tokens.
I think that you should know that investing is different with trading and when you are investing your money to the altcoin or something else, that means you were using your altcoin as your investment for the long term and there will be no a lot of traders needed and that's still worth consider so many ethereum tokens are including into the major coin.
I think that's not a problem as long as he can afford the tx fees. Ethereum token like enjin, aave are worth to invest in