I guess this is for mid / open teams since there already is a High scrim thread

Format:

Team name
Skill level
Prefered time of playing matches

You can also use both of these for on-the-spot scrims:

http://www.teamfortress.tv/30728/the-teamfortress-tv-discord-find-scrims-more
http://irc.lc/quakenet/tf.wars/

I pretty much just copied this thread from ash who made the one for s22