Buying TikTok would be really hard, even for Big Tech. Here are the most likely to do it, including Microsoft and Oracle.

• The Biden administration and CFIUS are pushing for a sale of TikTok in the US.
• Analysts said a few companies like Microsoft, Oracle, and private-equity firms are likely buyers.
• The Chinese government could also block a TikTok sale outright before bidding kicks off.

US officials are demanding that TikTok divest its American business from its Chinese owners in a move that some believe would reduce its potential risk to national security. 

But the list of companies that would actually consider buying TikTok is small, experts told Insider.