Star Trek Online's 14th anniversary event featured the addition of a new multiplayer activity to the roll: The Battle of Wolf 359, where a team of players essentially cosplays through a simulation of the bloodiest single battle in Starfleet history prior to the Dominion War.
At Wolf 359, a group of 40 Federation starships got thoroughly wiped by the OG Absolute Unit, a single Borg Cube. In STO, this takes the form of a multi-phase giant boss battle where your team shuffles between fighting hardpoints on the cube's surface, rescuing escape pods from destroyed ships, and taking out assimilation probes that launch out of the cube.
To promote the addition, Cryptic worked with fan artist Pundus to create a size chart for the ships included in STO's take on the battle. It's not 100% canon, and takes advantage of Trek lore's holey nature to include a few shout-outs and STO originals. It's also apparently based on the fan novel "We Have Engaged the Borg."
For example: Since the Akira-class and Lower Decks' Parliament-class have no specified launch date, they could easily have been around at that point in the TNG timeline. Similarly, a variant of the definitely-from-the-same-era Ambassador-class, the Narendra-class, shows up in "prototype" form. Same deal with a few "unidentified" ships from the batle that were replaced with STO originals like the Shikahr-class (a Miranda-type ship with TNG aesthetics), the Georgiou-class (a variant of the Walker and Centaur with the same style as the Excelsior)