Salesforce Einstein BOT conversations can be transferred to

1. Queue(Omni-Channel Queues)
2. Another Bot
3. Skills(Skill Based Routing)

Note:
Once the Bot transfers it, Omni-Channel process kicks in.

Help Articles:
1. To Queue
a. https://help.salesforce.com/articleView?id=000351918&language=en_US&mode=1&type=1
b. https://help.salesforce.com/articleView?id=sf.bots_service_transfer_queue.htm&type=5

2. To another Bot
https://help.salesforce.com/articleView?id=sf.bots_service_transfer_bot.htm&type=5

3. To Skill
https://help.salesforce.com/articleView?id=sf.bots_service_transfer_skills.htm&type=5