HP
but I buy parts and build my own.
at your preferred budget, ask for a list of parts in the HomeBuilt Forum. specify if you want case monitor kb mouse speakers or not
specify anything else you want
insist on staying in your budget
tell them you want a new and current system and not any end of life parts
tell them what games you want to run
that should get you a lot of response.
most people here won't buy brand name systems - but will buy brand name parts and assemble at home - it's easier than you think - lots of help is available.