I've used a Samlex for a bunch of years now. Installed one in a friend's RV. They work good. We both got the 1000 watt pure sine wave as it comes with a remote. you can get for about $350.
If you want to spend less, then they have other PSW models.
BTW, the fans on cheaper inverters make a lot of noise and run continuous. But better inverters have a control system that only turns the fan on as needed at various speeds.
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.