Plenty of alternatives, from Saberlot, Raikou (Lancer) and Altria Pendragon (Lancer Alter) crittage, to Chloe’s full NP spam. Then there’s a whole glut of NP2 Servants that come rather close, but have better(or should I say easier to set up) follow up, from Yagyu to Kiyohime (Lancer). But of course we count from NP1 for all of them, so that does not quite apply.
Then there’re the whole array of counter-Servants, such as Orion, Euryale, Jack, etc. Strong ST Servants like Ozymandias/Quetz/Scathach/etc.
The issue with Berserkers, and why that is a bit more murky when it comes to cross-Tier List mentions, is that you only need 1 of the top options for any of the classes. That’s a much less difficult task than having a top Servant in the right class.
Anyway, these are just my thoughts. The options are so free and massive after all. Jeanne d’Arc (Alter) just really stands out here in that sense as her output is just that silly. Mind you, she’s getting a down arrow on the upcoming change log.
Edit: going to catch a few hours of sleep before JP update, will reply to any comments once I am back.