Dorothy Sayers' "Lord Peter Wimsey" series. Growing up, I mostly read SF. Sometime around college, I had read pretty much everything worth reading. In Medical School I started reading mysteries, mostly classic British mysteries. Initially that was the influence from my gf from the era, who was a classmate of mine. Oddly enough, she was from Montreal originally, but moved to the US when she was 3(?), but her parents were old-line English-Canadian of the "we're more English than the English" stock, and still strongly identified with the British Isles. Our favorite of the era (or should I say favourite) was Lord Peter. I wanted to be him when I grew up. (Not having been born a aristocrat in an era when that mattered; nor having been born rich, which always matters; was a bit of a handicap in that ambition, not to mention his being fictional.) Recently a Gentle Reader mentioned Jill Paton Walsh's reviving of the character with "Thrones and Dominations." I got it from the library, started reading it, then realized I had read it years ago. It's not an imitation exactly, in that Paton Walsh was working from notes/drafts that Sayers had started. She's since written two more, which I'm tentatively planning on reading. For comparison purposes, I went back and started re-reading one of the actual, original series, "The Five Read Herrings," and just couldn't get into it. Maybe it wasn't one of her best, or more likely my tastes have changed. As to the new series by Paton Walsh, it was well done. Held my interest adequately, but no more than that. I seem to remember feeling the same way the first time I read it (but that was literally decades ago, so not certain). Like other series that try to take up where the original author left off, sometimes it's too well done. That is, they tend to overdo the details and mannerism of the original character. I seem to recall feeling that way about Robert Goldsborough's taking up of Rex Stout's "Nero Wolfe" stories. Not saying it shouldn't be done, but just very hard to get exactly the right flavor.
I already posted about Ben Schott's "Jeeves and the King of Clubs." I grew up adoring the Wooster and Jeeves stories by P.G. Wodehouse. This novel, approved by the estate, claims to be an homage to body of works, but could equally be a sequel, pastiche, parody, or all of the above. Overall, I liked it. Some of it went well outside what Bertie Wooster's world would have allowed, and some of it made too liberal use of the mannerism embedded in the stories, but overall well done. I hope he'll write another one, which P.G.. can't, what with being dead. Such state being an handicap to writing, although not necessarily to being published, and certainly not to being read. I just reread "Jeeves and the Feudal Spirit." While not as fall-on-the-floor-laughingly funny as I found them to be first time around (xxx decades ago), I still really enjoyed it.
BTW, the Wooster & Jeeves, and the Peter Whimsey books were all made into TV plays, back when I did watch TV, and they were very well done.
Mostly I have no energy for serious reading. I'm tired, I have a lot going on, and I have to do serious reading as part of my job (although there are some journal articles that are ludicrous, but not necessarily comic). On the list of "very well written fluff," there's David Weber's "Honor Harrington" series of space operas. I suppose one could think of it as a continuation of C. S. Forester's "Horatio Hornblower" series. If the brave Captain had lived in the 40th (?) century, had a star ship, and was a woman. Except even more interesting than that.