Does that Dell have a mechanical drive? The Acer Nitro 5 is in your price range and has great specs, and currently Newegg is selling refurb units for around $580 of the 256GB SSD variant.
There is a new Asus TUF line notebook for $699 right now on both Amazon and Newegg, it is very niche however. It has a 1TB hybrid drive which is its bottleneck, and it only has a 2 GB 1050 (as opposed to a Ti, etc) in order to sacrifice for the fact that it has an 8th Gen processor. However this might be a good option as it seems to have a great cooling system, nice quality keyboard, and although its not a SSD, it simply has more space for games while not exactly crawling like a traditional HDD.
If you are not uncomfortable buying refurbs, I would...