Mining project and i need help

hey guys i need some Tipps from the great raven community. I want to invest about 10.000-15.000€ in mining hardware. I have a IT Company and good contacts too hardware reseller. What is the best GPU in price/power rate? RTX 3090 is hard to find and the new ones with LHR. I read that nvidia release in Q2 2022 mining gpu’s but no Information about the price. Better i wait for the release or buying 10x RTX oder AMD GPU for my investing bag? I buying crypto since 5 years but I never do mining. I’m very thankful for your tips.

Much regards from Germany! 🙂