Solder a SMA socket to an ESP32 for a external antenna - YouTube
ESP32 Mini Camera ESP32-Cam-Antenna Wifi Bluetooth Camera Module Development Board ESP32-S Micro Cam With Ov2640 Camera Module : Amazon.co.uk: Electronics & Photo
ESP32-S WiFi & Bluetooth Module with ESP32 and PCB/IPEX(u.fl) Antenna - Modtronix
ESP32 Range Extender / Antenna Modification | Peter's electric trick and electronic blog
ÚJ-ESP32-CAM Wifi Modul 2.4 G Antenna ESP32 Soros Wifi ESP32 CAM Fejlesztési Tanács 5V Bluetooth With OV2640 Kamera vásárlás online - Számítógép Alkatrészek / Intrepid.fi
How to add an external antenna to an ESP board - ESPHome - Home Assistant Community