Here are some colour scheme ideas if any grab you:
Scandi/coastal: greys, muted blues, blue/greens, pale wood, faded red, natural linen/gentle browns, muted navy, brushed silver
Mid century: teal, ochre, burnt orange, mint, apple green, (think Orla Kiely colours), warm yellow/orangey woods like teak, aged brass
Earthy/natural tones: chestnut, tan, terracotta, beige, stone, forest green, pale green, all kinds of wood, bronze
Jewel tones: deep teal, turquoise, amber, magenta, cerise, royal blue or brighter navy, shiny brass or gold or silver.
Bright/rainbow: white, primary colours like bright red, green, blue, yellow etc, natural wood
Personally I’m not a wallpaper fan as it’s such a commitment but depends if you love it or not!!