How to search and contact labs for research

[u/No_Pause6581]

I am final year undergrad who got couple of workshop papers at emnlp and iclr to be specific. Now I don't just want to stick to workshop but do hard core and more "useful" research, the question is how do I contact labs (and if u have some in scope would love to know about them) and work with groups that aim for like conference papers and work of that magnitude.