I have an idea for a series I’d like to write that fits this somewhat. In the Kelvin timeline before Romulus is destroyed but after Voyager, the Romulans decide to stripmine their doomed solar system, build a fleet, and go on a conquest to subdue Federation territory starting with Earth. The war would be an over-arching theme but the episodes would still be mostly self contined challenge of the week type stories based one ship & crew but with glimpes of what other crews are going through, but also flashbacks to how the invasion got started showing how we got to “now” without dragging it out.