You should check out this thread from a couple weeks ago where people helped me analyze CPU options (with a focus on video transcoding and power efficiency).
In the end I settled on the i5-14500. Which would be an enormous performance upgrade while also operating at a lower TDP:
In this thread I’ve been getting great advice on the build as a whole. I’m trying to strike the best balance I can between reliability, performance, and power efficiency.
Depending on your budget, how much performance you want, and exactly how power efficient you’re trying to get, I think you might benefit from skimming through my recent threads.