And as far as SSDs go, I would suggest one of these or similar from a known brand.
There's a lot of crap out there but these are at least from respectable 2nd-tier companies. No need to spend Samsung or Crucial money on this thing but don't buy anything from the likes of Ranxian, Fikwot, Gigastone, KingSpec, KingData, Ritek, Leven, Joiot, Ediloca, Vansuny, Raoyi, Risemode, Bliksem, etc, etc. All of it is garbage.
Also, no need to buy a big drive. A Windows 10 installation is what, 30GB? If you're just using it to surf then save some money and get a 240/256 gig drive. Putting a 1TB drive in something like this is a waste.
And don't clone Windows to it. Save your money on a USB adapter and just install the same version of Windows that's on it now from scratch using the Windows Media Creation Tool and give it a clean start, unless there are a bunch of HP apps or other software on it you want to keep.
All my own personal opinions of course. I enjoy messing with this stuff while many others don't want to deal with it or have the experience to be comfortable with it.