Is it possible for a human being to get Lord Rama Darshan as earlier saints had? If so, what should one do?

The very fact that you are asking this question you have realized God a.k.a. Lord Ram.

God is there in everything, so he has already manifested to you in the form of knowledge. Yes, you now have the knowledge that Ram is there, he is God.

There are people who will just mock at this answer, there are people who are just living their lives, making money, parties, inventions, investing in share market, playing, enjoying partying hard, trying hard to get material things.

Worst there are people who know God but still go back to material ways.
So you are lucky he has already shown you the true meaning, who is nothing but God.

Now you are asking can i meet Ram physically in his poorna avatar.
Decided for yourself is it worth it. If it’s worth it knowing God he will not deny you. Think about it.