Noble metal nanoparticles (NPs) are of great interest due to their unique optical properties, which are directly related to localized surface plasmon resonance (LSPR) in the visible to near-infrared region of the electromagnetic spectrum, making them potential candidates for a wide number of applications, especially those involving analyte detection by surface-enhanced Raman scattering (SERS), photothermal therapy, and photocatalysis. Among plasmonic noble metal NPs, gold nanorods (AuNRs) are anisotropic nanostructures whose LSPR can be tuned through their aspect ratio. AuNRs also have the propensity to assemble into ordered superstructures, granting collective plasmonic properties which are advantageous for a number of applications (particularly SERS spectroscopy), driving the development of techniques for NP assembly at interfaces. The synthesis of NPs of varying size, shape, composition, and surface chemistry has been well-established due to scientific progress in colloidal synthesis via wet-chemical methods in the last decades. However, the capability to assemble such NPs into well-defined structures requires careful balance of their interactions. Tuning of the colloidal environment can allow access to different lattice symmetries , particle orientations , and even enable complex NP superlattices . Template-assisted self-assembly methods based on capillary forces encountered at interfaces during evaporation-induced self-assembly have shown great promise for the fabrication of ordered assemblies of NPs on surfaces . However, the requirement of cleanroom techniques to produce the silicon masters used for the templates limits the capability for free-form patterning of plasmonic NP assemblies on solid substrates, in addition to the drawbacks of liter-scale NP synthesis and deposition times up to hours.