You can try some Watch to Earn apps. You said 1 phone. So just manually watch ads over and over again and get some cash for 2nd phone. I recommend you do a farm at this point. 2-3 phones because it's hard to babysit all.
Depends, may i ask where are you from? If you are from US, UK, Canada or something like that i may help or if you are international i could recommend some.