Been using this one quite a lot!
⭐A .PAT file for photoshop, containing five different style patterns, so you can install it and use them through the photoshop pattern system. All patterns have no background.
⭐A set of five large .PSD canvases with the pattern already on, so you can just copy them and slap them onto your project, in either PS or CSP (4000x4000px, 300dpi)
⭐Open PS, click the bucket tool.
⭐Choose 'pattern' instead of 'foreground'
⭐On the upper right corner, click the ⚙ icon, then 'load pattern'
⭐Load the downloaded .PAT file.
⭐Always set the pattern on a different layer from your background.
⭐Try out different layer styles in order to fit your final image better.
⭐Alter the color balance, use clipping masks and add gradients onto the pattern for better final results.