Here is a poster for Season 2 of my ideal spin-off, The Dash Family Show starring Rainbow Dash, her adopted little sister (Scootaloo) and her parents (Bow Hothoof and Windy Whistles)!

Plot:
Rainbow Dash, her little sister (Scootaloo), her parents (Bow Hothoof and Windy Whistles), her grandmother (Firefly) and her uncle (Rainbow Blaze) are back with a new season! Join them, along with Pharynx (Rainbow's Dash's changelingfriend) and Nightshade (Captain of the Shadowbolts) in these 20 percent cool adventures of comedy, drama, action and family love!

Main Characters:

Rainbow Dash (Daughter of Bow and Windy, adopted big sister of Scootaloo, granddaughter of Firefly, niece of Blaze and marefriend of Pharynx)

Scootaloo (Adopted daughter of Bow and Windy, adopted little sister of Rainbow, adopted granddaughter of Firefly and adopted niece of Blaze)

Bow Hothoof (Husband of Windy, father of Rainbow, adopted father of Scootaloo, son-in-law to Firefly and brother to Blaze)

Windy Whistles (Wife of Bow, mother of Rainbow, adopted mother of Scootaloo, daughter of Firefly and sister-in-law to Blaze)

Firefly (Mother of Windy, mother-in-law to Bow and Blaze, grandmother of Rainbow and adopted grandmother of Scootaloo)

Rainbow Blaze (Brother of Bow, brother-in-law to Windy, son-in-law to Firefly, uncle of Rainbow and adopted uncle of Scootaloo)

Pharynx (Brother of Thorax and changelingfriend of Rainbow Dash)

Nightshade (Captain of the Shadowbolts)

Other Characters: Cloudchaser, Flitter, Rumble, Thunderlane, Derpy Hooves, Cloudkicker, Sunshower Raindrops, Blossomforth, Apple Bloom, Sweetie Belle, Pipsqueak, Rarity, Spike, Cookie Crumbles, Hondo Flanks, Pinkie Pie, Cloudy Quartz, Igneous Rock Pie, Fluttershy, Posey Shy, Gentle Breeze, Applejack, Discord, Silverlay Big MacIntosh, Marble Pie, Limestone Pie, Maud Pie, Pear Butter, Bright Mac, Diamond Tiara, Silver Spoon, Mayor Mare, Silverspeed, Twilight Sparkle, Queen Chrysalis, Nyx, Twila, Larva, Crystal, Night Light, Twilight Velvet, Shining Armour, Princess Cadance and Princess Skyla.

Seasons: Three (With 30 episodes each season and a full-length film)

Rated PG 16 (Strong language, Intense Action, Sex References and Scary Scenes)

Headcanon:

The events of Season 8-9 (With the exception of The Washouts and Best Gift Ever) are not canon.
Scootaloo gets adopted get Bow Hothoof and Windy Whistles after her original parents and two aunts pass away.
Following after the poor treatment the Wonderbolts gave her in Newbie Dash, Rainbow quits the Wonderbolts and joins the Shadowbolts instead. Don’t worry, she doesn’t become a villain. For my headcanon, the Shadowbolts are real and instead of being performers or soldiers like the Wonderbolts, they are vigilante superheroes. This was based on an idea by King Grover: https://youtu.be/u003OBHXl7A?si=lcUD4Cp3-Vc_6r0F