There are 2 repositories under knowledge-graph-for-recommendation topic.
KGAT: Knowledge Graph Attention Network for Recommendation, KDD2019
Recommender Systems Paperlist that I am interested in
Learning Intents behind Interactions with Knowledge Graph for Recommendation, WWW2021
Reinforced Negative Sampling over Knowledge Graph for Recommendation, WWW2020
A curated list of awesome graph & self-supervised-learning-based recommendation.