I'm using an old version of iStat Menus, works fine. I did try Stat but the text in the menu bar is too thin for my eyes, and the developer wasn't receptive to my PR that addressed the issue. Which is fine. But makes the app not for me.

I was finally persuaded to subscribe to Setapp. I had already paid for licenses to most of the software on Setapp, but as I have more and more of them roll into a “free” upgrade, I definitely think it’s worthwhile.