There are some good brushes to be had for the price you are looking to pay, but I wouldn't recommend any of the Simpsons. I would wait until I was ready to spend another $20 or so and look at a Commodore X3 as an baseline Simpson. Maybe a Colonel X2L for a few bucks less.

-As Celestino said, the MS brushes are a super deal right now.
-Stirling has some really good brushes well below your price point that lather well above.
-The RazoRock brushes have knots from Zenith and are quite good for the price.
-For that price you could get a custom made hamdle from an maker on Etsy and specify that you want a TGN knot. (Either Finest or Grade A Silvertip)

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