The reason why i am asking is that if you wish to "sell" to your wife sexually sharing her with other men, you will need to give good reasons, examples of what you expect from the experience
for yourself too.
It is nice of you that you want her fulfilled with the best sex she can have. But that's not very convincing. Most Women are men-pleaser. Which means her counter-argument will probably be that she has the best sex with you already (simply because she doesn't want to hurt your feelings). You need to offer her something, a new way of how she can please
you.
Moving forward in this lifestyle is a slippery slope so always tread lightly! If you present her with new ways that turn you on, you have to watch out that you never give the impression that the sex life you already have would not be enough for your sexual gratification because that would implicitly be a reflection of
her not being enough for your satisfaction.
ImO the only "safe" way to move forward would be to truly make it a couple-thing. Just some extra activity to add to what you already have - not a necessity but something that you can
try without obligations, something that adds something for both of you, just a little spice. But the main menu needs to remain what is between you already.
SRRY LONG READ
Also... what are your wife's fantasies? Does she have anything on her sexual bucket list? A long-lived fantasy that makes her especially horny whenever she thinks of it? Never let it get one-sided! Your wife has fantasies and desires too. If sharing her was brought up by you, how many times are you roleplaying that scenario and how many times do you roleplay or realize a fantasy or scenario your wife brought up? In a strong relationship in which both partners care for the other's well-being it will be a give-and-take with both partner's needs being taken care of equally.
Practice open communication without taboos. Be honest and trustworthy. Create an environment in which your wife feels safe and secure enough so she does not feel like having anything to hide. Whatever she brings up, no matter how strange or funny it may seem at first, always take it with respect, never laugh it off or ridicule her ideas. Otherwise she will shut down. That's not what you wish for.
i think the next step will be reasonable easy for you given what you explained about your state of communication and your moving forward with your roleplay and "dirty" talk. Never use pressure or it will again be shut down completely or postponed for a very long time.
i too believe a visit to a Swinger's Club is perhaps the most easiest next step. Those clubs provide a safe environment. In clubs there are no obligaions of whatever shape or form. You are free to do whatever you want (based on mutual consent of course), and if what you want to do is nothing at all then be it and nobody is going to complain.
The most important rule of thumb for a swinging couple is: A "no" mentioned by either
one partner means an instant "no"
for both partners; a "yes" is only a "yes" if both partners fully agree. There is
no exception to that rule and both partners understand its importance and follow it because it means respecting each other's boundaries which is a necessity! Agree on discreet signs for "yes" and "no" respectively and also agree on a safeword as a last option to stop things immediately.
After the visit discuss the experience thoroughly. This may sound like work but can actually be a lot of fun to recapitulate the evening/night and helps you learn a lot about each other when both admit what they liked and what less.
Always focus on the fun and the experience you share as a couple which will help strengthen your bond if you go the whole way together in an open, honest and trusting manner. Good luck and have lots of fun together with your wife!