K-1 visa 134 Sponsor

[Juan&Rocio 44]

Hi guys, I have been losing sleep for the past two weeks thinking and reading and can't get a definite answer on my own. I am currently living in Bogota Colombia with my Fiance. I lost my job in March 2020 due to COVID where I was making around 38,000 and filing taxes for the past 4 years under that same amount. I am currently working as a Professor in Bogota but dont make that here. My joint sponsor backed out last minute because he is moving to another country. When my k1 get to the embassy and I can book an interview my game plan is to go back to the states to obtain employment. I know I can get a job there that would pay annually to be above the poverty limit. We would be 2 and my future cosponsor is just 1. He has made over 40,000 in the past two years but his mother died this year he took some time off and is only set to make around 24,000 this year. He offered to sponsor but i am not sure what would be better? What should I do. Thank you guys for your responses .....