So don't know if anyone has covered this but I have the Maker and I found that the Precise V5 & V7 pens work perfectly in place of the Cricut markers and

Smoother rollerball (liquid ink) pens than Vision Elite/Hitecpoint V7? : r/ pens

Markers & pens that work GREAT with the Cricut Explore.

How To Use Non-Cricut Pens with Your Cricut

Cricut Joy 3pk 0.8 Point Glitter Gel Pens Black/gold/silver : Target

Uni-ball Signo UM-153 Ultimate Cricut Explore/maker Adapter - New Zealand

Varsity Fountain Pen, Medium 1 mm, Assorted Ink and Barrel Colors, 7/Pack - Advanced liquid ink system and genuine stainless steel nib guarantee smooth writing. Fashionable, no-maintenance fountain-pen is pre-filled and easy to use. See-through ink reservoir lets you know when you're running low. Multi-Color SetIncludes a convenient pouch for carrying and storing all of your favorite colors.

Varsity Fountain Pen, 1mm, Purple Ink

Cricut Permanent Markers 2.5mm ,Black

Cricut Pens vs 5 Other Brands

Replaces original Cricut stock pen holder to allow use of other most popular markers and pens in your (Explore Air/Air 2/Air 3/Maker/Maker 3) cutting

Pen Adapter Set Compatible with Cricut (Explore Air 3,Air 2,Air, and Maker 3,Maker), 14Pcs Pen Adapter Compatible

Permanent Markers 2.5 mm, Black (3 ct)