What you need is a USB network adapter.  There are many of these available.  Choose one with good reviews.

If you have a Best Buy Near here is one you can get today.

https://www.bestbuy.com/site/linksys-next-gen-ac-dual-band-ac600-usb-network-adapter-black/5174100.p?skuId=5174100&ref=212&loc=1&extStoreId=523&ref=212&loc=1&ds_rl=1268652&gclid=Cj0KCQjw9IX4BRCcARIsAOD2OB0QJbULLz_qvrgnTEkM7PKkYA1sBNdGBraypXF913KWEZ2MYd6K3ekaAuJ9EALw_wcB&gclsrc=aw.ds