I have a DE gene dataset and I would like to know which TFs have binding sites at the promoters of these genes. I found a list of 615 human TFs on the GSEA website with the genes they bind to, but my DE gene list is too large to manually test. I then thought to create custom GO terms using each the TF target genes, but that also would take too long (615 TFs). Does anyone have any good alternative suggestions? All I want to do is to mine the TFs that could potentially bind to my DE genes to validate them functionally. Thanks in advance!