Ironically, liveaboards are largely about maximizing time on the water focused on diving, though in some cases access to distant preferred sites is also a big draw. By the time you do the dives, gear up for diving, clean off afterward, eat, socialize a bit with other divers, sit through the dive briefings, download photos off your camera's memory card to your personal computer or tablet at day's end, etc..., and if you're like me doze on a lounge chair off and on to recuperate, there's not a whole lot of time to be bored. So while I doubt you'll find multi-day affliction with boredom a big problem, it left me wondering what led you to choose a liveaboard. Prospect of high dive count?
That said, if you like to hedge your bets, there are some options.
1.) One liveaboard with a rep. for not just being about diving is the
Cuan Law. It services the British Virgin Islands, which I haven't dove; from what I understand that ought to be within your experience level.
2.) The 'land-based liveaboard' approach, where you take a land-based vacation that makes 4+ dives/day feasible. There are a number of options; I'll share a few I've been to.
1.) Bonaire - currently with coral bleaching and SCTLD, and shore diving is a lot more work than liveaboard diving, plus it's not a big topside place...still, for your first visit, it ought to be serviceable. Curacao has more topside, but involves more planning.
My Research Notes for Bonaire -
My Research Note For Bonaire
8 Day Trip Report: Sand Dollar, Dive Friends
2022
Trip Report Bonaire Trip Report - V.I.P. Divers/Aqua Viva Suites
2.) CocoView Resort in Roatan. While the resort itself is on a little island, they have excursions to do to other things topside.
CocoView Trip Report May 2021 -
Trip Report - CocoView Resort May 8-15, 2021
My Research Notes from planning a Roatan Trip -
My Research Notes from Planning Roatan Trip
3.) Key Largo, Florida - I dove with Rainbow Reef Dive Center back in 2013. 4 Dives/day, plus the entertainments of the area on land. If you took a day off from diving you could room and do something in the Miami area, etc...
Key Largo with Rainbow Reef Dive Center 2013 -
http://www.scubaboard.com/forums/fl...iving-key-largo-rainbow-reef-dive-center.html
Little Cayman Beach Resort and Cayman Brac Beach Resort I have not been to; IIRC, you can get 3 days/day (not counting occasional night dives), and Cayman Brac is bigger with a little more topside, but neither is what I'd call a topside amusement park by reputation. Grand Cayman boat diving is expensive; in the past airfare and car rental weren't bad, some resorts have access to shore diving to bump up your dive count, it's got topside excursions and a couple of budget options mentioned in the past were Comfort Suites and Sunshine Suites Resort in the Seven Mile Beach region.
Most of my Caymans diving was via liveaboard, and it rocked. The outer atolls of Belize were also very nice.
I suspect you need to get a liveaboard in so you can settle in your own mind whether they're in line with your desires, and so you can weigh whether it's worth it to you in destinations where they offer serious advantages (like the Galapagos).