I think the both the current ongoing books, Star Trek and Star Trek: Defiant, are a lot of fun, in the way that grabbing up a handful of action figures and smashing them together is a lot of fun. They’re ultimately silly fan service in a way that’s completely uncynical.
On the subject of action figures, if you want to talk about completed series, I think Star Trek vs. Transformers was actually really good. I especially like that they leaned into the Saturday morning cartoon aspect by having the Enterprise crew from STA with Arex and M’Ress being part of the cast. Unfortunately, IDW no longer has the Transformers license, so finding a digital copy could be a pain.
I would be remiss if I didn’t shout out the Star Trek: Lower Decks mini-series that came out a few months back. Everything you [I] love about LDecks, but in comics form. It was written by Ryan North, the author of Dinosaur Comics, and The Unbeatable Squirrel-Girl. He also said I was funny one time, and now nobody can tell me a damn thing.
Circling back to stories that are just dumping all the action figures out on the floor, my highest recommendation goes to Star Trek: The Q Conflict, in which Q and some other similarly powerful beings, gather up the crews of the Enterprise, Enterprise D, Deep Space Nine, and Voyager to act as their proxies in a cosmic dick measuring conflict.