It seems there are more pink / rose daylily varieties than any other color.  You will find 19 pink varieties with slideshows below.

Stolen Treasure is my favorite, a very prolific grower/bloomer with flowers which sometimes have 4 petals/sepals rather than the usual 3.  Barbara Mitchell has the beautiful curved flowers, but is not a prolific grower in Houston.

I love Jolyene Nichole's beautiful pink flowers.  Key to My Heart has very large scapes that produce 8 to 10 blooms each.  The flowers are slow to open ... almost never fully open ... but would be a welcome addition to any daylily garden. 

Stolen Treasure ... rebloomed Jul 18 - Aug 27
​Cape Coral
Barbara Mitchell
Jolyene Nicole
Key to My Heart ... rebloomed Jun 04 - Jul 04
Pewter Pink
Renie's Delight
Merz
Fair to Middlin'
Spacecoast Sweetness ... rebloomed Jun 23 - Jul 20
Green Turtle Key
Scottish Fantasy
Persian Market
Sweet Tart
Elegant Candy
Kupferteller
​Fuchsia Mauve
Rags to Riches
Tequila & Lime
Stolen Treasure - 13 plants, favorite pink daylily, 6.5 inch flowers, 26 inches tall, midseason late, dormant, sometimes 4 versus 3 petals/sepals, bloomed Apr 12 to Aug 27, rebloomed, 76 days with blooms, Spring Hill
Cape Coral - 2 plants, 5.75 inch flowers, 28 inches tall, early midseason, semi-evergreen, gorgeous flowers, first year, planted Jun 20, bloomed Jul 30 to Sep 6, 15 days with blooms, Schreiner's
Barbara Mitchell - 2 plants, 6 inch flowers, 20 inches tall, early midseason, semi-evergreen, no two blooms exactly the same, could be the prettiest pink daylily ... aside from Stolen Treasure, not a particularly dynamic grower, bloomed May 8 to May 18, 16 days with blooms, Spring Hill
Jolyene Nichole - 2 plants, large 6 inch flowers, 20 inches tall, relatively weak scape for size of flower, midseason, evergreen, bloomed Apr 30 to May 25, 11 days with blooms, Spring Hill
Key to My Heart - 1 plant, 5 inch flowers, 25 inches tall, strong scapes with multiple branches, flowers slow to open, early, evergreen, bloomed May 3 to Jul 4, 49 days with blooms, and this is just one plant! Breck's
Pewter Pink - 1 plant, 7.5 inch flowers, 24 inches tall, early midseason, dormant, bloomed May 22 - Jun 5, 10 days with blooms, not bad for just one plant, Spring Hill
Renie's Delight - 1 plant, 6.25 inch flowers, 30 inches tall, early, semi-evergreen, I love this ruffled daylily, sometimes pink in the morning, turning orangish in the afternoon, wish I had more plants, bloomed May 7 to Jun 1, 14 days with blooms, Breck's
Merz - 2 plants, 5 inch flowers, 30 inches tall, midseason, dormant, first year, planted Apr 30, bloomed Jun 19 to Jul 19, 23 days with blooms, Olallie
Fair to Middlin' - 4 plants, large 7.5 inch flowers, 30 inches tall, early midseason, semi-evergreen, first year, planted Mar 6, bloomed May 16 to May 31, 14 days with blooms, Oaks
Spacecoast Sweetness - 1 plant, 3.87 inch flowers, 21 inches tall, early, semi-evergreen, bloomed Apr 26 to Jul 20, rebloomed, 26 days with blooms, Breck's
 Green Turtle Key - 2 plants, 5.5 inch flowers, 22 inches tall, early midseason, evergreen, first year, planted Sep 18, bloomed Nov 11 to Dec 14, 9 days with blooms, Schreiner's
Scottish Fantasy - 9 plants, 5.5 inch flowers, 28 inches tall, midseason, semi-evergreen - bloomed May 31 to Jun 26, 23 days with blooms, Spring Hill, Gilbert Wild
Persian Market - 2 plants, 7 inch flowers, 27 inches tall, midseason, evergreen, first year, planted Mar 6, bloomed May 27 to Jun 16, 12 days with blooms, Oaks
Sweet Tart - 3 plants, 5 inch flowers, 26 inches tall, midseason late, dormant,  bloomed May 26 to Jun 6, 5 days with blooms,  Spring Hill
Elegant Candy - 21 plants, 4.25 inch flowers, 25 inches tall, early midseason, dormant, each flower looks pretty much the same, only a moderate grower,  bloomed May 15 to Jul 3, 46 days with blooms, Spring Hill
Kupferteller - 2 plants, 6 inch flowers, 25 inches tall, midseason, semi-evergreen, first year, planted Mar 6, bloomed May 18 to May 28, 4 days with blooms, Gilbert Wild
​Fuchsia Mauve - 2 plants, ​4.5 inch flowers, 26 inches tall, midseason, dormant, first year, planted Apr 30, bloomed Jun 22 to Jul 1, 7 days with blooms, Olallie
Rags to Riches - 2 plants, 5.5 inch flowers, 28 inches tall, midseason, evergreen, first year, planted Mar 6, bloomed May 12 to May 19, 5 days with blooms, Gilbert Wild
Tequila & Lime - 2 plants, 5.5 inch flowers, 29 inches tall, early, dormant, only 1 plant bloomed so far this year, bloomed May 10 to May 15, only 3 days with blooms, rather disappointing ... did much better in 2020, Color varies quite a bit depending on the weather, K.van Bourgondien  ​