So I ended up going with these on Amazon:
Jeffirm 48 Pcs Soft Transparent Frosted Plastic Card Holder Protect Clear Sleeves
https://www.amazon.com/gp/product/B0796LX781/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1They were cheap and had prime shipping so that was the biggest factor in my decision. I would have preferred to get side loading ones like the one's Wiggy linked but I couldn't find any at as good of a deal price wise as the top loading ones were.
Here are some pics of one along with an original sleeve on the right


They are a little snug for the HuCard at first but once they stretch out a bit they seem to be fine. It is a little harder to get the card out with it being top loading but again, not a big deal. I would recommend putting the "grip" end at the opening to make it easier to remove. For the price and convenience of these being in the US (as compared to most being out of China) I would recommend these. If I had to order more, I would probably look for a side loading one again but with 48 of these in this pack at $7 I can't really complain.
TL;DR: these are a good replacement sleeve.