Hi there,
I am new in seo and I just want someone to help me getting more relevant back links without spamming into forums could you give me an advise please.
Thanks in advance for help.

Hi
just follow white hat techniques for promoting the website. by doing this one can get good quality backlinks, choose high PR sites for link submission .   

finding new forums and place signature links on forums.

U can try link echange also. This is also a good way of getting links.