This is built the way of the Zelda Timeline, with reincarnaitons.
Before Sonic Boom
this the beginning of the tineline. Sonic (Sonic Boom)'s ancestors (prior to hedgehog staues, as stated by Sonic Team members) defeat Lyric, until Sonic traps him himself.
The next part in the timeline. It takes place thousand of years before the other games, due to the vast jungleness of the world.
Between Sonic Boom and Comics
Hedgehog awesomeness is carried on.
90's Sonic Comics
The basic 90's of the timeline.
New hedgehog comes, named Silence.
New Sonic comes along, meets new friends. By now, Xorda invasion begins.
Sonic from Modern! and friends return.
Sonic Adventure 2
New Sonic comes, and makes a new rival.
Sonic CD (Between 90s and Classics)New Sonic comes after Silence, meets Metal Sonic.
World breaks, Earth begins to transform.
Before Lost World and Sonic Colors
New Sonic comes.
Sonic and new Tails fight Eggman. New technology everywhere.
Sonic and Tails from Colors find Lost Hex (soon to be Mobius).
New Sonic comes, Earth is now Mobius. Last part of the timeline.
Thank you for reading!