Mod suggestion: Torch Slabs Mod.

[K0-RR]

• Allows for the vanilla Torch, Soul Torch, Lantern, Soul Lantern, and End Rod item to be placed:
  on the top of half slab blocks.
  on the side of a slab and stair blocks.
  onto Lilypad blocks.

• Does a Forge version of this mod exist? - https://www.curseforge.com/minecraft/mc-mods/torchslabs-mod