To get that "Numberjack" feel in your posts, look for fonts with these traits: Rounded Edges : Soft corners feel friendly and "educational." High Contrast Colors
The official font used for the Numberjacks VAG Rounded (specifically the Bold or Black weights). This geometric sans-serif typeface is known for its distinct rounded terminals, which give it a soft, friendly appearance suitable for children's educational content. DeviantArt Font Details and Alternatives VAG Rounded numberjacks font