Are you asking about sources of SACD/Hi-resolution rips? Or are you asking how to rip your SACD's?
If the former, then you are best served by searching for Hi-Res music sources online, which usually can be purchased in FLAC format. I don't think any of these are DSD rips, but are typically 24/96 & occasionally 24/192 material.
If the latter, then it is technically possible to generate a DSD digital stream with alot of angst & effort, including obtaining a correct Sony PS3 model with older firmware, & a special hi-rez decoder box from somewhere in Eastern Europe. Of course you'll also need the appropriate computer hardware to receive & record the hi-rez digital stream to your hard drive.
A bit easier is to find a DVD-Audio transport that outputs hi-rez PCM through its digital-outs, and record to your PC with that. Not DSD, but still hi-rez. Such transports are rare, and probably no longer in production, but can be found & don't require any external decoder box before going into your PC.
Lastly, all of the above assumes you have a DAC that is capable of using this hi-rez content (up to 24/192) in the first place.