Best place to park down payment funds?

Looking to shore up/set aside ~$70k for a house down payment. My partner and I are planning to start the search in June, but it could take months. It’s going to pain me a little bit to sit on this much cash for an indiscriminate amount of time, but I know it’s the responsible thing to do.

I was thinking of putting the funds in something like FDLXX (I have state income tax) but I have no need for auto liquidation. Is something like SGOV more suitable?