GPIO SPI I2C for controlling knobs/sliders

Hey! Wanted to ask if someone has managed to use rpi’s GPIO with SPI or I2C. Anf if you had, which one do you recommend? what do I need? I already have two(2) MCP3008 in order to use the pots, which are 10k pots. I really really need this help so it would be much appreciated!!! btw I’m using ubuntu LTS20.1 in 64bits.