You can play the mainline Sonic games in any order you want, really, but there is a canon and some will make more sense played after other games due to the introduction of various characters.

Full spoilers follow from this point on! Sonic fans have been waiting eagerly for the third installment to the blockbuster ...

Mania is considered one of the best Sonic games of the 2010s because of the experiment in allowing a group of Sonic fans to create a game other Sonic fans would love, the vivid neon graphics ...