ShortPixel – While I optimize images before uploading them to the site, I utilize the ShortPixel service to optimize the uploads further.
WP-Rocket – Even though the hosting on my Digital Ocean droplet is cached and uses Redis, some of the additional features WP-Rocket has helped to speed up the site further.
GeneratePress – is a fast and optimized theme with many features without all the bloat.
GenerateBlocks – Since I was so impressed with GeneratePress I went all in an purchased their blocks plugin which adds to the site features.