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.