I played with a couple of free packages today. I can recommend hardinfo. (sudo apt install hardinfo to install then hardinfo to run ) though less about the benchmarks than the information it gives on your system.
I’ve got both 32-bit Raspbian and 64-bit Raspberry Pi OS on two sd cards and intend to run both and compare benchmarks just to see the difference.
Another benchmark utility that looks interesting is sysbench (sudo apt install sysbench to install). It runs from the terminal and lets you run benchmarks against file io, cpu, memory threads, mutex and oltp. Just type sysbench and you’ll get a list of commands.