TBH, none so far that goes exactly where The Hotwife was going, but those that get closest are likely to be on this thread.
Here's a list of recent titles I played that strike a similar cord, with good story:
Deliverance (complete), sharing Kat is perfect Hotwife, you can cheat on her without apparent consequence, or lose her if you go too far, but cheating is optional and completely unnecessary - you still get some minor content of her sharing you, if you remain faithful, though it isn't the point of the game).
College of Mysteria (ongoing) is the opposite, you start as a doofus but quickly get smart, led by your girlfriend who's the perfect wingwoman. Most of what there is, is her getting you laid with others, but you can share her, too.
Moonripple Lake (ongoing), you share your gf and, so far, the story materialises The Hotwife's promise, where your wife and you both get pretty horny from her teasing others and progressively doing lewder stuff, fucking each other more intensely for it. You can cheat as well and it's likely to have consequences, there's a suggestion that it will have negative consequences but, so far, it's optional and, frankly, she's also teasing you with your appreciation of other women, so if you focus on her and let her lead, it seems like it may lead to mutual sharing, with the added bonus that you'll also be doing other girls only for her pleasure, like she's doing guys for yours. This is not in the game yet, but a good informed guess, imho.
My New Girlfriend (ongoing), similar theme, the teasing can be pretty strong but so far it resolves well, I do hope that the author is trying to paint an MC that's initially struggling with actually sharing his girl, but will quickly lose inhibitions and catch up with her.
Wife in The Building (ongoing) can go either way, but so far it's the game that best emulates The Hotwife's extensive couple conversations about what they feel, what they want, where they stand and where they're going. I hope they don't cave in to the passive cuck crowd, go there and vote stag if you care
Always Fan (complete) - interestingly, you have to be a bit thick and even cold to Emily to get her on the sharing route, which is started by promoting her on a streaming platform and pimping her out. It's an interesting story where your character is initially tainted by his attitude but can fully redeem himself throughout. With the right choices, Emily will wait for you to come around and you'll have a loving relationship, with lots of sharing. Prostitution eventually stops being a financial necessity but instead becomes a kinky fetish for both of you, and, in that route, Emily is always your hotwife, there's no antagonist, you love her back and she's also a great wingwoman, eager to help you make your harem with other girls and even developing a lesbian relationship with one. More fantasy than other titles but still within the "suspension of disbelief" realm and well written.
Because I Love Her (ongoing), there's a good sharing story here with lots of discussing mutual feelings and steps taken. You can also cheat and the game is in early development, post remake, but going the right way.
Rebellion: Rise of The Damned (ongoing, second chapter of the series) is not entirely focused on sharing, there's a decent story with accurate historical detail and a good rendition of ancient Roman scenery . You can be NTR'd but only if you're a complete spoilsport and force her to do it in order to go where she really wants to go, or you can go with her and not get NTR'd. Afterwards, in both cases, she's your loyal wife that you can share, just as she can be ok with your complete immersion in Roman debauchery. It seems like you have to push her a little towards sharing, then suddenly she's really into it, while also "adopting" one of your lovers under her protection. Writing is not as consistent as in others titles where relationships are concerned but it's an enjoyable game, also in development, where choices matter.
People have very often recommended titles within the "phone NTR" genre but I avoided them so far, mostly because screenshots suggest the entire game is played as a phone messaging simulator, meaning there's no possibility of sex between the MC and his girl. This sits it squarely in cuck territory for me, as I'm not interesting in playing just for the teasing of your girl being lewd with other guys if you're not fucking her silly yourself. It's hard for me to enjoy sharing your wife while you're living apart, but who knows. I'm open to people telling me that any of those games somehow does include the MC's active participation and emotional exclusivity with the FMC, or at least offers good teasing without feeling like the MC is just jerking off while his wife is getting other guys off.
There are others that are favourites here, but I haven't got around to playing them. You can generally trust that games that do follow a consensual sharing path will end up in this list, along others that tease into NTR territory but give you options.
Edit: hope this isn't spoilering too much, I'll add tags if it is.
