Never heard of people ordering cards off Aliexpress. Aliexpress is good if you need some iPhone LCD replacement screens but for actual computer parts I rather just use eBay or Craigslist.
Last I heard you need to becareful ordering high end GPUs on Aliexpress like the 1080Ti because they might be fake. Do some googling and there is a thread on some hardware website about some gamers getting scammed.
Just go to Craiglist and search for any RX 470/570 GPUs which are 8GB and pay no more than $125 for each. They are pretty efficient even today and you can always resell for gamers in the future.
Take a look at this 2 links:
here and
hereThis is just 2 examples, thousands of cards sold by sellers, these cards are 2nd hand cards from China mining rigs, and it's very popular in my country because it's way cheaper than used ones we have in our 2nd hand market
Some of these cards have problems with the fans, but it's cheap
As I said before, I already bought one, very used, not damaged, but very used (better to change thermal paste, clean and maybe do some maintenance on fans)