Surround Speaker Question

I would recommend Triangle Titus for surrounds. They are electrostat fast.
But there are many monitor sized speakers in your price range that will do a fine job.
Good luck.

Greetings

What speakers do you have for your fronts and what are you using for electronics? If you simply ask what are good surround speakers, I think that's the wrong question. If you get a different brand of speakers than your fronts they likely will not be timbre matched and when you ha e surround effects, especially effects that go between the surrounds and mains, it will sound different.

Secondly, you can either go for direct radiating or dipole surrounds. There are merits to each. Thus you may be able to get a direct radiating speaker (like a bookshelf) version of your fronts. You then have both timbre matching and placement options.

Regards
Theo

Timbre is not critical for the surrounds. Fronts and center, yes.