We do grow them and Wickson is my favorite out of these. I believe Greenmantle call them the Sweetmeats group? All small to medium size apples. Another one of theirs that is in that category is Crimson Gold.
My first Etter variety was Pink Pearl and it is still one of favorite red fleshed varieties but very finicky here in SE Ohio to get intense red flesh color. Too much rain late in the season means a paler color.
Alaska is a great Etter variety that bears reliably every year, very light colored skin.
Grenadine and Rubaiyat are two other good red fleshed Etter varieties. Pink Parfait for us is hardly worth growing but could be different where you are.