It’s a look that can easily be overdone, but plants with golden foliage do make striking accents when paired with contrasts like purple smokebush, sand cherry, or the black-green needles of deeply colored evergreens. In theory, they’re also wonderful for lighting up dark corners, but in practice they usually need full sun to keep their sunny color. Planted in shade they tend to fade toward bright green.
With that caveat in mind, go forth and shop! For year-round effect, there are evergreens. From arborvitae through spruces to yews, most of them come in evergold as well. The genera Chamaecyparis and Juniperus are particularly rich in gold-foliage cultivars, with offerings from several different species and a large assortment of sizes, shapes, and degrees of hardiness.
Among deciduous shrubs, you can choose from golden alder (Alnus incana ‘Aureus’), golden elder (Sambucus canadensis ‘Aurea’), golden Japanese barberry (Berberis thunbergii ‘Aurea’), golden mock orange (Philadelphus coronarius ‘Aureus’), and yes, you are seeing a pattern. If it says ‘Aureus’ or ‘Aurea,’ something about that plant is going to be yellow.
There is also a golden ninebark (Physocarpus opulifolius ‘Dart’s Gold’), golden privet (Ligustrum x vicaryi), several spireas including the pink-flowered ‘Gold Mound,’ and if you want to go all out, yellow-berry cranberrybush (Viburnum opulus ‘Xanthocarpum’), which has golden twigs and berries as well as golden leaves.