A good place for free blocks is Quilter's Cache
http://www.quilterscache.com/QuiltBlocksGalore.html
Be sure and look for a page 2 on the individual blocks as they have them laid out in a project.
You can pair that site up with the book "Setting Solutions" by Sharyn Craig
This book doesn't have quilt patterns per se, but it has ideas on setting blocks. Blocks on point, different sashing ideas, etc. It's also a great source if you do BOMs, samplers or block exchanges as it talks about what to do if your blocks are slightly different sizes.
You can get a used copy pretty inexpensively on amazon:
https://www.amazon.com/Setting-Solut...ting+solutions