The discussion centers on finding theoretical physics labs with high-level expertise in specific areas, particularly theoretical high energy physics, theoretical cosmology, and mathematical physics. The original poster seeks an online database or ranking system to identify these labs by sub-field rather than by country. Participants emphasize the importance of specifying areas of interest, as theoretical physics encompasses various distinct fields. Suggestions include using academic journals like ArXiv and ResearchGate to identify leading researchers and their affiliated universities. The poster expresses interest in prestigious institutions such as MIT, Princeton, and Stanford but is also looking for comparable opportunities in Europe, particularly in Germany, the UK, and the Netherlands. They are open to online research collaborations or positions as a research assistant or graduate researcher.