Star Trek: Deep Space Nine

Memory Alpha lists a bunch.
Past Prologue, The Sword of Kahless, tie into Worf vs. Duras with TNG
Q-Less ties into Vash with TNG
The Homecoming/The Circle/The Siege is a three part/story arc about a Bajoran coup
Of course the mirror universe arc with TOS, ENT, DIS, PRO, S31
Dominion introduction and first contact
Quark and Grilka
Defiant ties into the Thomas Riker arc with TNG
Battle of the Omarion Nebula was a two-part story arc
Changeling Infiltration
Klingon-Cardassian War
Eddington vs Sisko
Trials and Tribble-ations ties into the Tribbles story arc with TOS, TAS, ST, PRO
A story arc with the fake Bashir while he and some others were in Dominion captivity
The Dominion Invasion
Bashir and Section 31
New Dax and The Sisko’s purpose
Nog and AR-558
And the final chapter with the last 9 episodes from Penumbra to What You Leave Behind

Of course a good few of these are part of the greater Dominion Cold and eventually Hot War that is central to the show from the second season to the end.

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The mention of the Dominion Cold War made me seen that 3 out of 4 episodes I looked into fits better in the Cold War category (while Alpha lists them as “Arc: Dominion introduction”).

Yeah, that’s a big enough arc on its own that there are several sub-arcs within it. The earlier episodes like the ones with the Ferengi trying to open up trade with the Dominion, or we meet people fleeing from the Domininion are kind of an arc within that, the first contact in The Jem’Hadar and The Search is another, Changeling Infiltration, even the Klingon-Cardassian War is tied into it since it’s the Dominion’s Changeling operatives putting the two factions against each other.