Yo ngl the Nord 4 not coming with a brick is such a massive L but I spent way too much time on Reddit and YouTube fixing this for myself so I got you. If the official site is sold out you lowkey have to look at the other BBK brands because OnePlus tech is just rebranded Oppo anyway. The best bet is the Oppo 100W SuperVOOC Dual Port Charger because it uses the exact same protocol and actually hits those peak speeds without the phone turning into a literal toaster. I saw a comparison video showing it charges just as fast as the official white brick. Another solid shout is the Realme 100W SuperVOOC Power Adapter since it is basically the same thing under the hood just different branding and usually cheaper if you find it on import sites. tbh I would stay away from standard chargers like the Ugreen Nexode 100W USB C Charger for this specific phone... like those are AMAZING for MacBooks and standard stuff but OnePlus is super stingy with third-party Power Delivery so itll probably just crawl at like 18W or 27W which is TRASH. Just make sure you use a 10A rated cable too or the 100W wont even kick in... idk if the Nord 4 is pickier than the older ones but most of these high speed ones need that specific cable thickness to not melt or throttle.