Recommend a proxy to access WhatsApp to bypass restrictions and keep a stable connection. I want something reliable, with good speed and minimal risk of blocking.

All correct above. See, resident proxies provide high speed and connection stability, which is important for messengers. Mobile proxies, such as those from Proxy6, are great too, especially if you're using WhatsApp on your phone - they mimic a real mobile connection. It's important to choose a proxy with low ping and HTTPS support so that data is transferred securely. Here you will find the best whatsapp proxy https://floppydata.com/use-case/whatsapp-proxy/