Here are some Clip Studio Paint Materials I enjoy
square texture brush
square brush
15 types of hatch-like brushes (ハッチング風ブラシ15種)
Stroke long hand drawn diagonal set (ストローク長め手描き斜線セット)
All hair + 4 bonus
Tuyabeta Hutching Pen (ツヤベタハッチングペン)
Iikanji Grademapset (Salty) (イイカンジのグラデマップセット(塩味))
OBongBong's Filter Set #2 (OBongBong's Filter Set #2)
Wisteria (wisteria) (藤の花(등나무꽃))
mapping pen 5-wire Brush (丸ペン5線ブラシ)
SU-Cream Pencil (SU-Cream Pencil)
Watercolor marker ▲ ■ and texture set (水彩マーカー●▲■とテクスチャーセット)