Pinterest wouldbe your best place for ideas. The possibilities are endless and it will all depend on your taste. I saw this one and just loved the idea.
Take a look at these:
Hi Ginna. I'm Cindy. I would like to suggest laying all of your pictures out on the floor before putting them on a wall. Six months ago I did this same thing. Using painters tape, I drew out a box on the wall in our hallway. I wanted it to look like a large picture frame. About 2 inches all around. I went on line and found a font I liked. I printed out my saying "Family is Forever" and I used it like a stencil. Across the top inside my large box on the wall. I put all my pictures on the floor and moved them around until I was satisfied. Then I hung them on the wall. To my surprise it turned out really nice. Good luck Ginna and Happy Holidays.
Thisnpost has very beautiful and original ideas. https://stylecaster.com/how-to-hang-pictures-on-your-wall/slide2
You could just string photos and make a garland in conjunction.