I need help in buying a cheap wifi adapter for my wifite to work

Hello everyone! This is my first post here!
A couple days ago i flashed NetHunter on my Nexus 5 device, and i like it really really much. The problem is when i try to enable monitor mode, i don't have wlan1 and i know i can solve this with a wifi adapter. I ask you to help me find a cheap wifi adapter, i would like to buy it from ebay/amazon using paypal, and i want to ask you aswell if i can find one under 2 dollars. I ask you for help because i don't want to buy another thing than will not work. Thank you for helping, i hope you understand my english.

Sadly your gonna need to step up your budget or at least save your money till you got $15-$20 to spend the TP-LINK TL-WN722N is the best your gonna get for the price.