What book should I purchase for artificer?

As the name suggests, I’m wondering which book to purchase on dnd beyond for artificer so that I can use the dnd beyond website as my character sheet for my d&d games; mostly for in person, but also for online sessions.

I know that ebberon and Tasha’s cauldron are the two books for the artificer class; however, I don’t know which book I should purchase out of the two. Does one have more features than another? I don’t own any other books on dnd beyond, If that helps. Thank you guys in advanced!!