USB OTG hub extends Micro USB OTG port on the Pi Zero plug in more USB devices as keyboard, mouse and WiFi dongle.
Raspberry Pi Zero USB HUB HAT (B) Expansion Board 4x Extended USB 2.0 Ports Optional USB HUB BOX for Raspberry Pi Zero W WH - AliExpress
6. Pi Zero USB OTG — gpiozero 2.0.1 Documentation
Adafruit 3298 Interface Development Tools
4-Port USB Hub for Raspberry Pi Zero Manual Datasheet by Adafruit Industries LLC
QVS Micro-USB (Type-B) Male to USB 2.0 (Type-A) Female Slim OTG Adaptor for Smartphone or Tablet 6 in. - Black - Micro Center
USB On-The-Go - Wikipedia
Ultimate Guide to USB Cables by StarTech.com
Smays 10/100LAN Micro USB 2.0 OTG Micro-B Ethernet Adapter Compatible Linux Raspberry Pi 2/Pi Zeros, Windows 10 Tablet (Lenovo MIIX 2 8), and Android
4 Port USB HUB HAT for Raspberry Pi Zero
USB C 3.0 Hub Triple Display | QGeeM Grey
Micro Usb Otg Hub Hdmi
Inland Micro-USB (Type-B) Male to USB 2.0 (Type-A) Female Slim OTG Adaptor for Smartphone or Tablet 6 in. - Black - Micro Center
Add extra wired Ethernet & USB 3 ports extra storage to your streaming device for connecting wired network,flash drive,wireless keyboard or whatever
4 in 1 Ethernet Adapter and 3 Ports USB OTG Hub for Fire TV Stick 4K/Chromecast/Google Home Mini/Raspberry Pi Zero and Other Streaming TV Sticks,Micro
PoE Ethernet / USB HUB HAT for Raspberry Pi Zero, 1x RJ45, 3x USB