A few months ago, I'd recommend your 3k fund to ETH @800-1000 dollars. Enough for 32 ETH to set up a PoS node and hold ETH for the long term. Now, 32 ETH cost more than that @1600 dollars. BNB could be a good alternative since they are backed by Binance. You can put half of your fund in it for staking reward and hold BNB for 1 year. Another half, just keep it ready for any good chance of coins going to dip in the market. Look for anything that has the smart contract layer.