django-tasks is the reference implementation for django.tasks, by the same author. It's up for discussion if and when the DatabaseBackend gets merged, and it seems likely to me that a Redis-based backend would be suggested at some point. It takes time and energy though!
Yeah, profilers are very varied in Python, and none are super easy. I often use either cProfile + pstats (per this post: https://adamj.eu/tech/2025/05/20/python-quick-cprofile-recip...), cProfile + gprof2dot (per this post: https://adamj.eu/tech/2024/03/23/django-optimizing-system-ch... ) or py-spy. I'm excited for "tachyon", the sampling profiler coming in Python 3.15.