Like
@HerbalEdu said - spinosad is good for thrips, I used to use it on house plants that had critters but not had it in a while.
If you dont wanna spray, you need a jug of soapy water, tweezers and a lot of patience. Sit down over the weekend and systematically pull them mo'fos off and put them in your soapy water.
I suppose if you wanted to avoid spraying your buds you could dip a cotton bud in spinosad and systematically apply it to each leaf.
If you dont wanna spray it is either monotony of picking for hours or just get it over the line as best you can