If you think about it, Texas Chainsaw Massacre, a series supposedly known for it's confusing timelines, could technically be one timeline. The reboot is about the Hewitt family, completely separate characters to the Sawyer family, so in theory, the Illuminati could have orchestrated August 18th, 1973 to be a night of terror with two cannibal families with deformed individuals wearing a mask made from skin.
It would be a huge coincidence that two families had a Leatherface in Texas attacking people the exact same day (the explanation I provided being, of course, unoffical) and there's not really a link between the two, but it's a fun thought. That combined timeline would be a piece of shit to do due to the original and reboot taking place at the same time, so Saw timeline 2.0.
Sawyer Family
Hewitt Family
1958 - The Texas Chainsaw Massacre: About a Boy #1
1965 - Leatherface
1969 - The Texas Chainsaw Massacre: The Beginning
1972 - The Texas Chainsaw Massacre: By Himself #1
1972 - The Texas Chainsaw Massacre: Special #1
1972 - The Texas Chainsaw Massacre: The Grind #1-3
1972 - Tales of Horror #1, "The Texas Chainsaw Salesman"
1973 - The Texas Chainsaw Massacre: Fearbook #1
1973 - Petals
1973 - The Texas Chain Saw Massacre
1973 - The Texas Chainsaw Massacre (1974)
1973 - The Texas Chainsaw Massacre (2003)
1974 - The Texas Chainsaw Massacre #1-6
1986 - Texas Chainsaw Massacre: Part 2
1991 - Leatherface: The Texas Chainsaw Massacre III
1996 - Texas Chainsaw Massacre: The Next Generation
2000 - Jason vs Leatherface #1-3
2001 - The Texas Chainsaw Massacre: Raising Cain #1-3
2007 - The Texas Chainsaw Massacre: Cut! #1
2009 - A Nightmare on Elm Street: Special #1 [Leatherface Returns newspaper]
2012 - Butcher Boys
2012 - Texas Chainsaw 3D
2020 - Texas Chainsaw Massacre
I personally don't count Butcher Boys as all connections were removed when it became a standalone film, and the only connection that can be inferred from it are the Illuminati, but included it for completionist's sake since it started as Texas Chainsaw Massacre 5 and has a lot of the same crew. Also, cannibals in Texas.
Due to the fact that they had an ongoing comic series about the reboot and Tales of Horror featured Freddy Krueger and Thomas Hewitt (Leatherface), I wonder if A Nightmare on Elm Street: Special #1's Leatherface reference was intended to imply that the Texas Chainsaw reboot was in the same universe as A Nightmare on Elm Street. No evidence to support this claim though, so naturally only the Sawyer family counts.