Smart Reactors lets reactors request their own fuel from the logistics network, no inserter setup required.

Once unlocked, supported reactors get a hidden requester chest and smart control panel, so you can decide exactly when they should request fuel using decider-style logic. Works with nuclear reactors, fusion reactors, and can be extended by other mods through entity adapters.

After researching Logistic system, supported reactors can request fuel through a hidden requester chest. Later, Smart reactor controls unlocks the advanced decider-style panel, letting you choose exactly when reactors should request fuel using circuit-aware logic.

Basically: requester-chest behavior for reactors, with circuit-aware control when you want it.