Your business card is your first impression. Agree? Inspite of all things going digital, the good ol' business card carries some valuable info about you offline, in your Client's wallet. You can make it stand out with a different style / color / size - anything. Illustrations are big these days. Here's one I did for myself and one for my 7yo - Yeah! you read that right :) He ensures to tuck in his card with the gifts he gives out. Check it out.
While there are several templates available online, here's the one I use from Stock Layouts. It's got all the markings and necessary guidelines that is easy to follow, for your and your printer.
Shoutout if you need help with that drawing :)