Non-title bridal party

We are an older couple (54 and 60) and are planning an October 2022 wedding. Small, intimate, and formal. We have 2 couples that are our closest friends and want them to stand up with us. We are planning to ask them to be in the wedding but do not know how to "title"/address them, or not title them, if that makes sense. As we are older, and they are as well, we want it to be fun without the traditional titles of bridesmaids or groomsmen. Any suggestions on how to ask them as couples to be part of our big day? We are thinking of a gift box with the typical goodies and ask them if they would be our______________. Thanks in advance!