Here are some PC interfaces that are at the cheaper range and are multitrack. Do some detailed research on the one you want to ensure it has the features you need. Anything above 4 real output channels via USB will be more expensive and generally for quality over $1000.
The websites are just for reference, I did not do any price matching.
Behringer UMC404HD U-Phoria 4×4 Audio Interface $239
https://djcity.com.au/product/behrin...dio-interface/
PreSonus Studio 68c 6x6 USB-C Interface w/ Studio One Artist & Ableton Live Lite $549
https://www.storedj.com.au/presonus-...eton-live-lite
MOTU M4 4-in/4-out USB Audio Interface with Studio-Quality Sound $386
https://www.turramusic.com.au/motu-m4
Focusrite Scarlett 18i8 Gen 3 18-in/8-out USB Audio Interface $899
https://www.storedj.com.au/focusrite...udio-interface
Cheers,
Damien.