Not financial advice, but… given what happened with SVB, this is what I’m doing with my conservative cash account.
I split the cash holding roughly 50/50 between a basket of CDs FDIC insured well below the limit, and a investments into Schwab Money Funds, which all have a 1 day turnaround to cash.
The CD’s have varying terms, mostly 3 or 6 months, some are 1 month and some are 1 year. Anything longer than 3 month, I picked the CD that pays out monthly, instead of at maturity, even if the rate is slightly lower than ones that pay out at maturity.