Best bet with cards without a more set market value area is sold listings on ebay and also compre current open listings
Trust me they are there and if you cant find an 8…look at a 9…cant find a 9 look at an 8 or 10…doesnt need to be an exact grade…you can gauge the prices based on other graded sold(10s are different as they command a premium…but you can still get a good idea…wont sell a 9 at £!00 if the 10 is £60…usually)
I feel like a used discarded dirty dishcloth now
No problem always try different terms if one doesnt work…people list in all kinds of ways ha