Really depends on how “entry level” you’d like to go. For me, more important than length is that the USB cable separate the power and signal parts of the USB signal. The best value I found was the LavriCables Ultimate Silver USB cable that is about $132/m. I’ve not seen that a USB cable between a streamer and DAC needs to be 2m and not sure how much better that’d sound than a 1m cable, but it does up the cost quite a bit. Anyway, here’s a link for the cable I bought FWIW…
https://www.lavricables.com/cables/ultimate-silver-dual-usb-a-b-interconnect-cable/
Also, the Ethernet cable running to your streamer is very important (if you’re using one) so try to get the best you can afford there as well. Best of luck.