Most recently I bought some High5 ones that did leak from new. They were really hard plastic nozzles, so I guess didn’t seal well. Annoyingly, they were to replace some really old knackered High5 bottles that I’d never had a problem with & the looked the same.
I got some Elite ones that weirdly had the bottle cage dimple/recess in a different place to all my other bottles & funnily enough didn’t line up with the ‘keeper’ bit on any of my bottle cages, so they went back. Didn’t leak though.
Ended up with some Lifeline ones, which are fine. They weep a bit if you put an electrolyte tab in them & close them up immediately, but that’s par for the course I think. If you don’t do that, they are fine. Shame Wiggle/CRC went pop, as I guess they are no longer available.
Camelbak Podium seem good, but are pricey & I am never sure how well you can clean that twisty nozzle thing. Does it come apart?