So, I've given some thought about how to best respond. You will see a lot of the responses you have received have been from guys sharing or who want to share their wives. I think that's a great perspective and certainly one you should expose Pepper to. I am not one of those guys. I am the guy who the wife is shared with, or in common parlance "The Bull". So I'd like to share my perspective as well. I think the first thing you both need to understand is that no 2 sharing relationships are the same. You have 3 people in this dynamic. The married couple and the extra. While wife sharing is waaay more common than the you may think, it isn't cookie cutter. You need to pick carefully who you want to be your third, and make sure you have clearly explained his role to him. Right now, IMO, you want to find a guy who your wife may be attracted to, but more importantly someone who understands she is unsure. That nothing may happen, or that maybe she will only let him steal a kiss or hold her hand. An unsure wife needs to be courted just like you did when you met her. From your side Salt, you need to decide what your comfort level is. Do you want to see her first kiss with another guy? You may say yes now, but when the three of you are chatting and laughing ...... gets real when the lips lock. Your third needs to understand that you too have a comfort level. Your first third needs that understanding and the "maturity" to accept that he may go home without even a kiss and never get called again. Pepper needs to understand that this outcome is perfectly fine as well. That there are no expectations or disappointments. It should be as comfortable and pressure free as possible for her.
If you do find someone that Pepper wants more time with, you and she need to determine what is and isn't acceptable sexually and that too needs to be shared with the third. Again, communication, comfort and a lack of expectations is primary.
I hope this helped in some way. Feel free to reach out, or have Pepper reach out as well. I'm happy to field questions or whatever. This site is a community first and foremost. It is not meant to be a hookup site even though it does offer that opportunity. Good luck and Happy Thanksgiving.