at the UCSC website (https://genome.ucsc.edu), you'll find some tools as the genome browser that contains enough optional tracks for your purpose (just choose the right species nd genome.
but in general, I advice you to take some times in this website and explore all possibilities to run genomics and genetics projects.
Frederic Lepretre Thank you so much Fred! I am gonna give it a try. I checked the database and I need to take too much time on it cause i m not familiar with it. I have a gene list, now I am trying to identify their downstream genes to run RT-PCR, hopefully I can identify. Thank you for your suggestion again.