where to buy plushes w code??

hi friends! i’ve seen SO many people get webkinz plushes today in their christmas hauls! i was wondering if anybody knows of any good places to get them (with codes)? i was under the assumption that most of the current webkinz plushes in existence were likely thrifted/bought second hand from when they were popular many years ago? are they still being produced? where is a good/reputable spot to look?? thank you!!!