I recently bought the Jaeger Pattern Book 35, which all use their Jaeger Siena yarn - a "4-ply", which is between a DK and a fingering weight, and uses about a 3-4 neelde. Here's a link to the patterns - most are basic stockinette stitch, and pretty classic patterns.
https://homepages.force9.net/ethknit...atterns-14.htm