Repeating bargello long stitch needlepoint patterns, like those found on The Spruce Crafts, make great filling stitches for hearts - here is a heart-shaped template.
Visit the Hearts of Hospice creator, Greater Kansas City Needlepoint Guild, where cool patterns like Hospice Hearts and Nobuko Heart can be found along with a heart-shaped template.
Rainbow Gallery has 12 wonderful designs. These are open patterns which will work up quickly and may even look nice on metallic canvas.
Corning chapter offers a felted wool heart design.
The National Academy of Needlearts offers four small heart patterns.
Rhodes Heart by The Enriched Stitch, complete with stitch guides.
Colour Compliments offer two delightful needlepoint designs, feel free to choose your own colors: Flower Garden Heart and Nobuko Heart.
Draw on your own creativity by visiting Needlepoint Pattern Collection 2 and Needlepoint Pattern Collection 3. And while you are there, check out Hearts Aligned. It's part of the Cross Stitch Pattern Collection 1 and Cross Stitch Pattern Collection 2.
Trailing Hearts by Terry Bay is a snazzy way to create hearts, originally available as an EGA Stitch-a-long project on Facebook.
Brazilian Style Heart by Jean Hubsch is ideal for learning basic Brazilian-style embroidery stitches and includes finishing instructions.
Rhodes Heart
Lucky at Love by SJ Designs
Needlepoint Heart by Laura Perin