RAMbrandt's page

Without any boons the legal races are

Human

Android
Humans
Kasatha
Lashunta (both morphs)
shirren
Vesk
Ysoki

From the alien archive boon , which you can get just by playing, you can get a ryphorian or wrikreechee with a little bit of play and a barathu with a lot of games.

From the SFS Replaying Guild Guide:

"2. RACE
Select your character’s race. The choices offered in Chapter 3 of the
Starfinder Core Rulebook are always available, as are the Legacy
races in Chapter 13."

If legacy races do require boons, then this document needs updated to remove the reference to them in Appednix 1: Character Creation on page 21.

There is a link on the Boon Trading Thread for both PFS and SFS.

This statement appears to no longer be true unless said list is buried under multiple pages of activity.

I'm a new SFS player and I've heard many people say that several races cannot be used without boons or similar rewards. I've searched for a few hours using phrases like "Which Stafinder Society races require boons?" or "Which Stafinder Society races are legal?" and found only 3rd party mentions of these limitations through various forum posts on here.

Can anyone link me to an official document or other SFS sanctioned source that actually spells out what races (and other character components once I manage to get past my step one, being races) are allowed by default?

It looks like most people's biggest issue with playing a centaur from the bestiary rules is the inability to play as a first or second level character. This is also a big issue if I wanted to play a caster of some kind.

Cayzle's race build above looks pretty cool.