The Family Tree of Frost, you likely found this because of my submission of frost and read the description so thank you!

Basically the entire plot of SA2 still happened in this AU, however its shown later that silver is Shadow and Amy's son (i did take inspiration from a fan comic i saw and was like "yeah it wouldnt hurt to add a family tree to this") and so silver was born, he and blaze fell in love and later had frost, on her 18th bday her entire reality collapsed due to a superweapon made by [Redacted] and so she tries to stop him from doing the same to other universes. She meets allies and other AU children on the way (tails+cream, Sonic+Blaze, ect) and [Redacted] makes his own team as well, both eventually getting names for themselves. Frost's faction would be called the timeguard and [Redacted's call themselves "the organisation" (Its a placeholder name till i can think of something actually good). Anywho's theres a bunch of lore shenanigans going on but i'll have to stop spoiling so much of the damn story! i wanna write it down for goodness sake!