I have two master MCU and one slave MCU connected via UART with CTS/RTS pins.

I’m trying to do UART multiplexer with hardware flow control, CTS and RTS pins only, but I can not find appropriate IC for that. I don’t want to use 74HC4053 because it does not have a RTS/CTS pins.
Do you know is there multiplexer IC with RTS/CTS pins and if not how can I implement it?