A Schluter edge is inconspicuous and finishes it off nicely.
[Emser Cape Cod Tiles with Schluter Edge[(https://www.houzz.com/products/traditional-wall-and-floor-tile-prbr1-br~t_600~s_2107) by Memphis Kitchen & Bath Designers ProSource Memphis
Or, you can just paint the exposed edge of the tile the wall color. That's what we did on this edge that we stairstepped.
[Emser Cape Cod Tile, Stairstepped Edge, Blanco Silgranite Sink[(https://www.houzz.com/products/traditional-kitchen-sinks-prbr1-br~t_436~s_2107) by Memphis Kitchen & Bath Designers ProSource Memphis
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