Best Upgrade Options for My Older Gaming PC?

Hey everyone! I've had my PC built since around 2016-2017 and it's been pretty solid, but life got in the way and I didn't maintain it like I should have. Recently, I started playing some newer games like Dragons Dogma 2, which, while not the best optimized, runs okay (around 30-40 fps in towns and 60 outdoors). I also play games like Overwatch 2 that run flawlessly at 144 fps, even on max settings.

However, I'm feeling the pressure to upgrade since some games like modded Skyrim and VR games are starting to struggle a bit. I'm perfectly content with 1080p and 60 fps, and maybe even 1440p with solid visuals if possible.

Currently, I have an NVIDIA GeForce GTX 1070 Ti and an Intel i7-8700, plus a 1000-watt EVGA power supply. I've got 40GB of RAM, a couple of 1TB SSDs, and I think my motherboard is an Asus Prime Z370 series. I'd like to know what options are out there for upgrading without breaking the bank—ideally around the same price I paid for my graphics card and processor, which was about $300 each.

Should I just update the GPU, or is a full build necessary? Any recommendations are welcome! Thanks!