Lead Free varmint load .223 rem

I live in california and have to use lead free for any hunting (including shooting squirrels with a 22). I use Hornady NTX 35 grain bullets for my .223 rem load right now. They group good but Hornady has discontinued them. Anyone have any other suggestions on bullets I should try next? I heard varmint grenades will be hard to create a good load with

I think there is another thread on this but I know I've shot Nosler lead free 35 grainers with N133 powder and got incredible accuracy out of a 24" barreled AR with 1:12. Only problem, too expensive to continue loading.