OP: The problem with my current speakers are they seem very bright in the mids and harsh in the upper.
What you’ve described is probably the most common complaint in this forum. I suspect that new speakers may not be the solution. Typically, the remedy lies in cleaning up the power, room treatments and/or speaker positioning. Most likely a mix of each.
Here’s a link to a discussion about: Symptoms of Un-clean power. Many threads are about this subject.
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Speakers can always be found on sale. Take your time to figure out your course of action.
If you do visit a dealer, ask what kind of power conditiong they're using.