I prefer the hard or solid tonneau covers over the soft covers.
I had an Extang Solid Tri Fold cover on my last truck, and I really liked it. The solid covers offer added security over the soft covers, and are just as easily opened or removed as needed.
It really depends on how you use your truck bed - are you going to be folding the cover a lot, or removing it often? Another primary consideration is - do you care how it looks, specifically regarding whether the cover is low profile, on rails along the bed, or sits on top of the bed with a higher profile? (This attribute is quite a serious consideration for many)
If you just want to keep the sun and rain off your bed and cargo, a soft cover is budget friendly, and its easy to find many options under $200.00.
If the added security is something you would value, there are solid tri fold covers available in the $300-$400 range.
I went with a hard fiberglass cover on my current truck, and for me, it is perfect for my needs. If I were looking for the fold and removal convenience, I would give the Lomax a try - very sharp and low profile, but as someone said, quite a bit above the OP’s stated budget.
Check out eBay and Amazon for deals - I got the Extang I mentioned above for $400, New & delivered, which was 1/2 off the normal $800 price tag.