Hey @SigniDCaben19! 
I would love you to have a look at our alliance: Moonshine Warriors. We might be a good fit for you guys.
Even though we don’t have any couples in our group , you and your wife will be more than welcome to join us.
We are an international alliance with player levels from 41-74, all adult- drama free group and we are looking for more active players that love to attack the titans when online and use all 6 flags in wars. We do fight mainly 10-11* titans and we do coordinate our war tanks, our war strategy is very simple and similar to what you are looking for.
Line / Discord are great to have but optional.
If would like more info about us, feel free to reply here or on our recruitment thread:
Looking forward to hear from you! 