Sometimes, what you get is exactly what it says on the tin. Japanese user いいよいいよ (allgood) created the self-named Good Pen (いいろペン), which is highly appropriate. This is genuinely one of the best lineart pens I've come across on CSP. It has that traditional manga-esque ink style to it, a thin grittiness, and is very responsive when it comes to pen pressure. Nine times out of ten, I'm using this pen to ink my lineart. I cannot recommend this one enough.
If you're like me and are someone who moved to CSP from PaintToolSAI, then this is the brush for you! One of the reasons I frequented PaintToolSAI over Photoshop was because the brushes felt more natural and blended easier in PaintToolSAI. If you're a SAI user looking for something familiar, then this brush is as close as you can get. CSP user Okanu created this brush (and an iPad version!) to have the same feel and texture of the original PaintToolSAI brush. I did find that the initial download felt too light and airy for me (which is akin to SAI's style), so I upped the opacity and paint thickness to 100%. It still has that SAI smoothness, and works just fine even with the settings tweaked.
If you're looking for more options in terms of lineart, CSP user 대 (dae) has a full set of lineart pens. When you download this asset, you get five free pens (I know, I'm cheating the whole 'top ten' thing)! Dae's pens range from varied line thickness to a smoother, lighter texture. Having a full set can be beneficial if you're looking to vary up the lines or are illustrating a piece entirely by inking. Dae also has several other sets, such as a sketch and paint set, so definitely check those out too!
This lineart pencil by Escente has a bit more grit than some of the lineart brushes listed so far. It definitely airs more on the 'pencil' side and has great sensitivity, allowing the artist to shade more effectively. It takes a bit of practice using, but it feels really nice to draw and sketch with.
Okay, so this is another cheat on the top ten rule, but this watercolor marker and texture set by CSP user ×ェ× is absolutely gorgeous. Not only do you get thirteen brushes ranging from watercolor markers to blending brushes, you also get three texture and layer sets and an additional three tools, including a water stain brush. Using this set effectively requires practice and learning to layer the textures properly, but the end result looks like a watercolor painting on watercolor paper.
If the last set seems a bit too complicated to start out with, try 摩耶薫子 (Mayakaoruko)'s Color Ink Wind Brush instead. This brush feels like a cross between a watercolor brush and painting with ink. It has a really nice texture to it already, and is a simple tool for creating a piece with a more watercolor or brushed ink look.
This brush slightly changes the tone of whatever color you're using. It's super fun! This can be helpful if you have a hard time picking out colors or shades within the same color family. It feels a bit like working with oils or acrylics. If you're looking to craft a piece with a more painterly feel, try PokiHan's brush out!
Have you ever worked with copic markers? Then, this copic texture brush is a great digital option! CSP user AcidKeyLime created this brush to not only imitate the texture of a copic marker but also the intensity of one. AcidKeyLime recommends building up the saturation for darker colors, just like using real copic markers! See further notes on this brush on AcidKeyLime's page.
Experimenting with new pens and brushes is part of the fun when it comes to learning and using a digital art program. Clip Studio Paint is no exception!