I'm just throwing ideas out there but is it a necessity that you replace your CPU? It doesn't seem like you're planning on doing anything too load intensive and you might be able to bank your money to spend on a good GPU a bit later down the track when prices come back down.
If you're dead set on getting a new CPU then consider AMD. I understand that you might be a bit unfamiliar but they seriously are the best bang for buck at the moment. I would recommend the Ryzen 5 5600x, same number of cores and threads, slightly lower clock speed at 5.7GHz which won't make a difference for yo