It would help to know what you'll be using it for. (There's a very big difference between the specs needed for a decent machine to browse the internet, send emails, type out letters and watch YouTube video and for one needed for things like high-end video processing or playing the latest all-action video games).
It would also help to know your budget and whether you're prepared to accept a refurbished model from a trusted supplier. (If you are, please see my post at 2046 on this thread:
https://www.theanswerbank.co.uk/Technology/Question1742854.html . I'm typing this post on a thousand-pound-plus laptop that I picked, in perfect condition, up for two hundred quid from the eBay seller that I've recommended their. The other seller I've mentioned, which is where most of my computer hardware comes from, is just as good).
One thing I would definitely suggest that you need to be looking for though is a machine with an SSD (solid state drive). Traditional HDDs (hard drives) are a thing of a the past these days; SSDs make laptops run vastly faster).