Ask HN: Alternative to HandlebarsJS for Small Projects

I have been using handlebars for years now for small production projects. For example a single page of digital signage displaying the output of a JSON endpoint. It's been great for that but I feel like I may want to experiment with something new that can optimize my images at build time, gzip etc... What else out there these days can be used for this purpose? React/Next is overkill and to be frank not my skillset.