Photo "collage" template

[TanBrae]

I'd like to print photos on 13x19 paper. My photo sizes are 4x4, 3x5, and 4x6, and I'd like to create a template where I can evenly place the photos, getting the most out of my paper.

Are there templates for such a thing?

If not, how do I create one? And, if I do create one, can I make the sections into placeholders so when I copy photos onto the template, they will go directly into the placeholders/sections?

[GarryP]

If you can give us a visual example of the sort of thing you want to create then we can advise better.
Also, you need to tell us which Affinity application(s) you have access too as the methods may be different in each.

[v_kyr]

You can easily create your own templates, see for some examples this thread (Reusing filmstrips as photo borders) and things there like contact sheets as presentation media.