Looking to invest my down payment for a year before pulling it out to buy a house.

So the wife and I are looking to buy a house at the end of the year or beginning of next year. We currently have $19k saved for a down payment and will look to be adding to that after we pay our existing debts down to 0. What options are available for more short term investing? I know I could go stock market or crypto but what other options exist? I don't expect this to double or triple or anything crazy, hell, if it nets us an extra $1000 I'd be ecstatic.