@kitsch I went by various guides (rockpapershotgun have good ones) for comparison of current gen CPUs & selected mostly based on that.
After I went on PCPartPicker and found a motherboard & RAM that'd be compatible with the CPU & the previous computer hardware that's still going fine (GPU, case, drives, CPU cooler). I've a list saved there with my current parts, so swapping stuff out of that was fairly simple. It's a vgood resource for checking things will play nice together before committing.