What vitamin brand makes small calcium pills?

I have trouble swallowing pills and many vitamins are very large or not coated. Recently I purchased chewable calcium pill, but they are yuck. I’m hoping someone knows of a small sized calcium pill. In fact if you know a brand that focuses on easy to swallow pills in general that would be great to know, even if it is prescription. Right now I have a small B12 pill that is still difficult for me because it is not coated. I think I will try the sublingual next time. Most of the vitamins I take are doctor recommended so I am sure my doc would willingly write a script. Thanks.