OllyDbg has been discontinued but now you can use one of its spiritual successors:

- https://github.com/eteran/edb-debugger

- https://x64dbg.com/

Other tools you might like...

- https://cutter.re/

- https://github.com/longld/peda

- https://github.com/Gallopsled/pwntools

And of course, Ghidra, that means no mention.