If anyone in the future is reading this thread, I went ahead and did my own research and apparently the tips are called "barrel connectors"

I measured the width of the barrel connector on my power adapter and it's around 4.5mm-5.5mm so HP-branded replacement adapters like this should work: https://www.amazon.com/Genuine-Charger-M41303-001-TPN-LA10-Adapter/dp/B0B53C2RHD/ref=sr_1_6?keywords=hp+omen+charger&qid=1684896004&sr=8-6&ufe=app_do%3Aamzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0

Unfortunately this may be a proprietary so I'm not sure if you can buy a 230w aftermarket power adapter from a third party brand