Is there grounds for a wrongful termination lawsuit if it was something other than the 5 protected classes?

No, this would not be a viable wrongful termination claim.

You cannot have a lawyer represent you in small claims court.

Do we have grounds to file a wrongful termination suit?

No, it does not appear that you have any valid claim here.

You may have claims. A full consultation, including a thorough review of the documents involved, would be necessary to properly advise you....

I was terminated without a reason just a week later after I got positive annual performance review. What are my options?

You can sue, but it doesn't appear that you have a viable claim.

Can I sue for misclassification as an exempt employee?

It sounds like you are misclassified. You may be entitled to back pay for overtime, and penalties for meal periods and rest breaks that weren't...

What would be considered grounds to sue for wrongful termination?

This would not be a wrongful termination.

I am looking for an affordable tenant attorney, any suggestions? and can an attorney do it or it has to be me?

You can try having an attorney write a demand letter, as that might work. However, an attorney cannot represent you in small claims court.

Harrassment At Job

No, this is not in violation of any labor law I am aware of.

Yes, they can serve both forms of discovery.