Pretty Girl is now at the Seventh Stage, so it should be relatively easy to pilfer some bloodline power from his future wife. After all, he will accompany Pretty Girl on hunting missions, granting him plenty of opportunities for contact.
The Bluesilver Emperor can also be promoted to the Seventh Stage without any issue. Then there are the other few types. The Spirit Rhinoceros Eye just needs to reach the Fifth Stage; waiting for the Sixth Stage takes too long, and he now needs to enhance his overall strength, so he can only pursue that later.
Over at Time Variation Seal, there should be a chance to reach the Sixth Stage, and the same goes for the Golden Peng Transformation. Once Gu Li and Cheng Zicheng break through to the Sixth Stage, Tang San can prepare to start his breakthrough.