SM-S906L (straight talk) Samsung Galaxy S6 , , bootloader carrier unlock impossible

I have the Samsung Galaxy S6 SM- S906L for StraightTalk And every rooting app or tutorial I've looked into does not recognize or list this damn phone so I am hoping someone on here can let me know if it is possible to use my Straight Talk S6 with a Verizon sim card and account and what changes I need to make the phone to achieve that also been trying to unlock Bootloader to install TWRP recovery and a custom ROM and cannot figure out how to get past this one any and all feedback is appreciated

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