I am wanting to know what my fastest route to a legacy would be and a timeline on when I could possible be there assuming hiring continues as is.

I got hired to a KC135/KC46 reserve unit and will begin OTS in June 2020. I am trying to grasp a decent timeline for my life on when I will graduate UPT and start my 6 month seasoning. At that point will I have enough hours to get hired at a regional? Is it possible to become an ART for a year or two and skip regionals all together to get hired at a major? I currently work in operations at Envoy and its absolutely disgusting on how we treat pilots. I'd like to be able to build up enough hours to bypass a regional if I can.