You’re right, I think you’ll get a bunch of different opinions when it comes to brushes and supports for gouache.

Personally, I use relatively cheap, synthetic brushes that are firmer than watercolor brushes but not like stiff bristle brushes for oils. I think they’re called synthetic mongoose but not sure. Gouache tends to wear brushes down quickly so I don’t like to spend a lot for them.

My suggestion is to try various kinds til you find something that will work for you.

I’ve never heard of Kalish brushes but will google them when I finish this.

I hope you enjoy gouache – it’s a favorite medium of mine.

AbA

I’ve had luck with Utrecht’s synthetic sablette brushes.

Taklon synthetic fiber brushes are my go to and they have always delivered beautiful results.

I’ve just bought Daler & Rowney Graduate brushes after seeing a number of YouTube Gouache artists use them (without promotion, I had to google the Graduate name that I saw on the handles).

They are inexpensive all-purpose brushes (one brush cost me £2.50 in Hobby Craft) and look good to me.

I’ll let you know how well they work.

Taklon seems the way to go for both gouache and acrylic for me. Princeton’s seems pretty good, but even cheap no name brands I haven’t had too much trouble with.