Creative Commons have their own List of compatible licenses
At the time of writing there is only one licensetwo licenses that isare deemed compatible (with BY-SA 4.0), namely the Free Art License v1.3. and GPLv3 (which only works one-way)
They also have a list of rejected compatibility proposals right below the list of compatible licenses, which as of now is empty
New Licenses for the compatibility may be proposed to the cc-commitee by posting to their mailinglist under their process and criteria for determining compatibility