I am relatively new to TCDB but have been part of the baseball card blogging community for well over a decade. I have over 100,000 cards to trade. Also if you collect matchbooks/matchcovers, stamps, or bottle caps (including MLB/NFL caps from the 60s) I have some of those to trade, especially the matchbooks which I also collect.
PLEASE NOTE: While my modern cards are almost all mint/near-mint, the condition of my vintage cards vary greatly. Some are in quite good shape for their age; many more are in good/fair/poor condition.
ALSO NOTE: For the time being I will usually only be mailing out all packages, including PWEs, once a week, on Saturdays.
For my TCDB wantlists, first priority is my vintage Topps setbuilds. Second priority is the modern cards that I have on there. Lowest priority is the 2017-present Topps setbuilds. I do collect everything baseball, so even if you don't have cards that are on my TCDB wantlists, you will probably have plenty to trade that I would be interested in, so I'm happy to browse through your tradelist if you see cards on my tradelist that you would like to trade for.