So, you have fusion reactors, but what about:
Fission Reactors
And particle accelerators for materials (I.E. Antimatter, for bombs and a highly dangerous and effective Antimatter Reactor!)

Also, what about more compatibility?

(I.E Draconic Evouloution (Especially This one Cross-Mod Fusion Upgrades) Also, what about Modular Powersuits?) (Here Especially) (Once they update!)

However, this is just an idea. It's your mod. (Last time I checked that is)

@thiakil Thanks!

I would love to see a more modernised version of Big Reactors which was quite poorly ported to 1.12.2 under the name Extreme Reactors. Reproducing the reactor multiblocks with mekanism units and crafting recipes would be great.

This request has been added to the master list at #5320

In order to keep issue numbers under control this issue will be closed and used as future reference.