Does a token count to Xin Zhao to enter ready?

Yes, a token unit counts as a unit for Xin Zhao's ability.

According to Rule 179.1.d, a token unit is a unit and follows all rules for its type unless otherwise specified. Since Xin Zhao's ability requires "two or more other units," a token unit satisfies this requirement.

However, please note the following clarification from the official FAQs regarding Xin Zhao:

• Xin Zhao does not count himself. You must have two other units in your base in addition to Xin Zhao for him to enter ready.