Here are some resources for tracking Curio Cards market data
The Curio Cards Supply, Ownership & Price google sheet by community member ezrawithacamera.eth has a ton of information on recent sales, zombie wallets, wrapped percentages, card market cap, rarity adjusted prices, etc. It's a must-see resource for anyone curious about the curio market.
Crypto Slam shows current and historical trade volume and card sales pulled from sources like OpenSea.
The community gallery has an extra page that aggregates recent sales data from OpenSea to show the current value of a Full Set, or the USD value to buy or sell 1 of every Curio Card