I'm hosting a March Madness contest over on my baseball card-centered Discord channel (join here: https://discord.gg/P49HD8UZ). First place prize is some unopened packs of baseball cards. Also happening on my Discord right now is sign-ups for a 2022 Topps Stadium Club CHROME group break!
I run my own baseball card channel over on Discord (ask me and I'll happily send an channel invite to you). I run group breaks, contests, and giveaways on the Discord. I also write a baseball card blog over at Nachos Grande.