Back in the day I bought a fridge freezer combo, second hand, no handles. Used to be a built in model. As handles I used two magnets from full height drives, they were ludicrously strong and shaped like a little bit like a handle.
Full height drives were 3.25" high for those who are wondering.
Curious, you might want to look into what is generating your data then first. It’s very easy to generate data, it’s a lot harder to only generate and keep useful data.
Consider running HA in a light weight systemd-nspawn container with minimal debian. No docker, only install the repositories you need. HACS if needed. Run your own database on the side somewhere and let HA use it.