I have been working hard to get some more of my Pokemon listed up on Mercari because to this point Mercari has been my favorite place to sell.
Just this week so far I've made 6 sales for about $135, of which I'm scheduled to net $114 from those sales.
All sales are shipped using the labels printed from Mercari which provide me with the tracking that I need to ensure that my packages arrive when they're supposed.
If you haven't checked out Mercari, it's really a great place to sell!