If you need to get one like right this minute, here's one for $329. It's $299 quite often.

https://www.amazon.com/pecron-Portable-E600LFP-Generator-Emergency/dp/B0BKRY6NCL

But in all honesty, if you don't need one by tomorrow, I would wait for a better one.

Here's a better one. It has 50% more capacity. This unit is sold by a bunch of companies under a variety of brands. The most well known one is Oupes. It's currently on sale for $419. Other companies have sold it for under $300. It's a well reviewed unit. Both in number of youtube reviews and how good the reviewers say the unit is.

https://www.reddit.com/r/preppersales/comments/14sh38y/oupes_1200w_portable_power_station_solar/?

Here's the company that sold it for under $300, but it's currently out of stock. Another company ran out of stock at $329 a couple of weeks ago.

https://www.amazon.com/Portable-Generator-High-Power-Appliances-Emergency/dp/B09XJ4Z9X8/