Help us find a Fun Cruise line/Ship with Ocean Views (Eastern Caribbean, 12-14 Days)

After a dull experience on the Royal Princess last Christmas, my husband and I are looking for a redemption cruise this November/December. That was our very first cruise!
We want a newer ship with a better vibe—something more upbeat than Princess but less chaotic than a 'party ship.'
Our Checklist:
• Itinerary: 12-14 days, Eastern Caribbean.
• Ocean Views: We want a ship designed to actually see the water from public decks (not just the Sanctuary or a private balcony).
• Amenities: Great gym for him, decent food and nightlife for us both.
• Value: Mid-range. We’re opting out of the drink/dining packages this time. We did not utilize them.

Is there a specific line or ship that feels 'new' and fun for the 55-65 age range without being a floating shopping mall?
I’ve been going down rabbit holes with YouTube videos LOL. Thanks