I’ve never heard monitors directly but they would probably be your best bet for work. HS5 Yamahas have good reviews on Amazon and there’s some Pioneer DJs on sale for your price range and some Mackies that have good reviews.
For HT tuned speakers, stay away from Klipsch, way to bright. Polk might not be too bad or the Pioneers again. Not seeing any good sites with a frequency response graph to help you choose though
From my own experience, I have both the Adam T5Vs (A little more money 350-400 a pair) and the Kali Audio LP6s…350.00 a pair. Both are studio monitors and both can be pretty flat for recording… I love both but as I said they may be above what you want to spend…