According to CCC and TCEC Dragon is equal to LCZero

[Jouni]

But LCZero needs more expensive hardware. So it makes not much sense to use it at all with current electricity prices?

[Werewolf]

Well depends what you use it for. For objective analysis, maybe not. But for opening prep OTB in human games I find Lc0 second to none.

[Fritz 0]

I am sure it matters to professionals, or at least to players above 2200-2300 Elo. But for amateurs and chess enthusiasts like me, even a free version of Komodo is more than enough. The same goes for any good positional AB engine.