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As u/hjkiddk said, this of course is super easy, only take 5min maximum. Just need automatic1111 or even invokeAI with some good models... you will end up in a galaxy of designs.. 😄
Try https://upscayl.github.io/ it gives you 6 different upscale options. The upscales will probably take a long time on either of your machines, but it does open your options for upscaling.
PS since some people mentioned models like Remacri or others from the upscale wiki, a good application for me to use these is and that u can recommend is chaiNNer. Also i made a page to visually compare these models (thats the goal at least), you can go to the multiple models page and select a model for an example or then you can have a look at my favorites page with just the models that i personally liked best
Wrote more here but in my experience the free model HAT (Real_HAT_GAN_SRx4.pth) is the best overall, in terms of faithful reconstruction of the ground truth while also removing noise, compression artifacts, ringing, clipped dynamic range, etc. It maybe smooths out the fine details a bit too much but adding some noise after upscaling helps.
So far, Ultimate SD Upscaler is the best option, I actually used their own manual and used their options.. which you can find here https://github.com/Coyote-A/ultimate-upscale-for-automatic1111/wiki/FAQ