Building gaming pc on budget

What would u guys suggest as best to run a smooth game also future proof

For a really good pc, I'd recommend the Ryzen 5 5600, the RTX 3060 is a really good GPU, 16 gb ddr4 with 3600 mhz, a b550 motherboard, 500gb SSD is a must have and don't cheap out on your power supply, it's the heart of your pc