Design wall can be your best friend.
Graph paper is another friend.
One time, before I had a design wall, I cut paper blocks, cut to scale.
Post-it notes work good for this. Different colours are bonus.
Then moved them around on graph paper, til I got a layout. Photocopy.
Then move some more for another layout. Until you find what you want.
Photocopy each layout, so you don't lose it.