The ships in the Sequel Trilogy make sense for the most part.
The biggest change I wish they’d made was to have a different ‘main ship’ other than the Millennium Falcon. The Prequels had the Naboo cruisers, which fit the style of a more civilized time. The Millennium Falcon fit the style of a used and broken-down universe suffering under an Empire. This trilogy could have used a ship like that, such as a scavenged and modified Imperial Shuttle that Rey would use to search the wrecks. It would have been reminiscent of Luke’s Skyhopper while still making sense in universe.
I imagine something like this but with extra cargo space and some Rebel/Republic designs painted on the wings.