I have a few RT5370 for older RPis. They work well with the antenna. Plug and play with RaspiOS and Windows. Very handy to have. These were under $5 shipped in 2017. If you are interested, I can compare the wifi signal using the RT5370 compared to the built-in Zero W.
Hardware: RPi Zero W | Allo Kali | ProtoDAC TDA1387 X8 | PGA2311 | Icepower 500ASP | Harbeth SHL5
Software: Moode 8.3.3
Source: Win 10 NAS
Software: Moode 8.3.3
Source: Win 10 NAS