Help me build a TNG "Diplomatic negotiation" watch list

I want to re-watch Trek, but am looking for organize my watch-throughs thematically. I just can´t handle 24-episode seasons. ¹

I'm interested to see how TNG handles societal conflict within the framework of externally-mediated diplomacy (a Trek staple), aka negotiations. I'm not looking for EVERY episode with diplomacy in it, just the ones where two or more parties are being mediated by a third party. Episodes with only two parties (First contact stories if it is only Star Fleet and the other civ) do not belong on the list.

The episodes don´t necessarily have to be "formal negotiations," either. I remember an episode where Ryker negotiated for the rights of males on a planet rather capably using only his winning smile, hairy chest, an ever-abiding curiosity about foreign cultures. Since there were three parties (males, females, and Ryker)², it would go on the list.

Legal disputes handled authoritatively by a court of law (Measure of a Man) would also not be on this list.

Thank you so much!

Footnotes:

1. If anyone has a central clearing house for Trek playlists (or their favorite selective playlist) please let me know what it is.
2. Actually four parties, if you include the shipwrecked alpha chads.