H1-B from employer B got rejected, I-94 from employer A is yet valid. Am I still good to stay back in USA ?

[tj91]

H1-B from employer B got rejected, I-94 from employer A is yet valid. Approved I-797 from employer A is voided, but I-94 yet not expired.

Am I still good to stay back in USA till my I-94 from employer A is valid ? 

Also, can I apply for either Visitor visa  or   F1 Visa ( for Winter 2018 or January 2019) ?

Appreciate.

[Provence]

If you do not have a job, it's best to leave the US. Not working for the previous employer A should have meant that employer had to inform USCIS you're no longer employer there. Is that employer the shady desi consultancy who didn't pay you to begin with? 

Frivolous attempts to change status just to stay in the US are not helpful to others who are genuine visitors and genuine students.