I converted my cable park to a USB-C cable (male to male) and lots of adapers (the short sort you can keep in a box) years ago. Yet i have still some devices with a mini-B female port.
Only thing i found online are cables and everything else. Heck, there's even mini-DP > C and ethernet > C in that form factor.
To clarify, i look for something like this but mini-B instead of micro.
edit: Region is Swiss, Europe.
editedit: thanks guys, found one.
I‘m also from the Swiss and for this stuff i always use aliexpress. Very good price and never had any issues. https://a.aliexpress.com/_mtiKwFE Just search for „usb-c to mini“ and you find lots of options. generally you can say the higher the price the better the quality. also take note of the shipping costs, sometimes costs are „hidden“ in there. PM me if you need help or have questions.
Danke schön.
Check the amount of sold items for the listing check the shipping lrice and check the 1 and 2 star reviews. That way you make sure the item is genuine.