Uneven bridal party

Have the guys enter with your FH and the girls enter with you, all walking separately.

I would have your maid of honor walk down alone and the bridesmaid walk down with your 2nd groomsman. Or have all three of them walk alone.

I have 3 on my side and 2 on FH's side. I'm having the girls walk down alone and the groomsmen either escort mothers/grandmothers or also walking down alone.

Our groomsmen walked in with our groom right before the ceremony started. Then bridesmaids walked in alone. I've never seen them walk in together. When they exited, 1 BM walked with 2 GM since we had one more GM than BM.

We have an uneven wedding party with 1 extra groomsmen and we're using him as an usher as well. He will usher someone down the aisle and then go stand up next to the groom after helping their partner get seated