Tbh I think the blow boost fleshlight toy can give better deepthroat than majority of girls. I am 6.5 " length and 5.5 " girth. I have this toy and would recommend. Is manual but you can go balls deep every time and amazing orgasms. For hands free you could probably attach this to the fleshlight launch for an automatic deepthroat experience.
In terms of deepthroat best ones on scene I would Lexie raye, Veronica. Haven't seen Cara and haven't seen slopqueen yet
But overall would say throatpies are overrated. Best throatpie I ever had was from Zara (sweet British sub) but when I went to see her again she couldn't take the throatpie finish properly that time and was disappointing so hit and miss.