Only a matter of time - Illinois, USA

I'm a married man, we are both around 30, and no we have not swapped yet, but we have had fun with another couple, but I feel like they have hit their limit.
We live on the southside of Chicago, happily married, white, lower-middle class, and both of us are straight but definitely nowhere near 100%. We are both fairly attractive, definitely not 10s, but still goodlooking. I am willing to share pictures but only for serious and local inquiries.
Ideally, we are looking for serious inquiries from other married (or long-term relationship) M/F couples who are ok with taking this in steps because we have not fully swapped yet and are not likely to just go all the way the first time we get together.
Since we've gotten married, we have spent several evenings with a couple where we have all played strip games, the girls have gone to 2nd base together, the guys have gone to 3rd, and we have had intercourse in the same bed but no exchange from one M to other F. Both of us have been comfortable with all these events so far but I still feel the hesitation in regard to my wife being ok with me and the other woman. On the other hand, she has entertained the idea of inviting another F to play with us but it has yet to happen.
Also, she has recently gotten into anal play where she used to be completely uninterested. I have stimulated her front and back simultaneously and she absolutely loves it to the point that she asks me for it and she isn't typically the type to beg so this speaks volumes on her growth and interest to the point where I am close to asking her if she would like to have another man help me to DP with one man in each hole. I just don't have anyone to go that route at the moment.
So, any couples that want to reach out, I am not really on here often but I am looking for a pair to start a friendship with no guarantee of how fast or slow this could evolve, but honestly if we can actually find a pair to hang out with, I'm 99% sure we could at the very least, play some adult games together after hanging out just a few times or less.
Hope to hear from someone 🙂
-Freddie G.