I'm the person who is late making a list.
First,Charline,if I look at a pink tomato,the exterior is pink b/c it has a clear epidermis I cut into it and the inside is red. Take a red tomato, they have a yellow epidermis, and the inside is red.
So I'm not so sure about an exterior color making a difference in taste or in any other way. Just my opinion.
You asked for red hearts, so here's some that I really do like and have grown most of them several times for either seed offers or SSE listings.
In no particular order, but I do have my favorites.
German Red Strawberry
Indiana Red
Kukla's Portuguese Red Heart
Sheryl's Portuguese Red Heart
Linnie's Oxheart
Milka's Red Bulgarian
Reif Red Heart
Ukrainian Heart
Wes
Fish Lake Oxheart, the original red/pink version also
Bobbie
Danko
Provenzano
Russian 117, double flat heart
Aunt Sophie
Mom's Heart
Favorite Vacation
Grandee
Orlinoe Serdtse
Carolyn