Frame challenge: pick a sensor that complies with your needs and specification - especially the performance characteristics you're interested in, e.g. range of wind speed to measure, required accuracy and resolution, response time and data acquisition rate, to name just a few. Don't look for something specific to Arduinos to not unnecessarily narrowing down your options. Then design or adapt an appropriate interface to make them both work together.
Common interfaces of "industrial grade" ultrasonic anemometers (e.g. 1 and 2) are RS232/RS422/485, so technically UART, though in need of level shifters or a RS-485/RS-422 transceiver, e.g. Maxim. Some also offer analogue output that might be feed into an Arduino's analogue in after matching voltage levels.
I would assume that I2C/SPI are rather uncommon as these are for short-distance, intra-board communication not for connecting a separate sensor module.
The same thought applies to the power supply, I recommend to drop the requirement of powering the sensor with 3V3 put rather select a power supply for a sensor available and affordable. The anemometers available at the linked vendors typically list a supply voltage of 5-30VDC or 6-24VDC.