Hi, I would try Amazon, they have some decently priced Edgar Allan Poe books last time I checked...Ebay might also be good but again, it is probable that the books you find there may be in worse condition.
In terms of a non-physical copy and reading online, you could try Google Books (I found a ...

Check out this leather bound edition of collected works. Other publishers have similar fancy editions.
https://www.simonandschuster.com/books/Edgar-Allan-Poe/Edgar-Allan-Poe/Leather-bound-Classics/9781607103141

Barnes & Noble complete works, leather bound.
https://www.goodreads.com/book/show ...

I am looking to add to my collection and find a Edgar Allan Poe book or two. Not looking for a 5 figure 1st edition, but nothing looking for a worthless reprint either.

What sites are my best bet for buying?