Thanks for the insight. I would guess that these aren't traded on normal exchanges like coinbase. So I would have to buy ethereum and then find a place that will swap the crypto to Ocean or D4RK or whatever by connecting to my coinbase wallet and doing the swap?
you can send btc to the exchange. stex for d4rk, kucoin for ocean and ewt. you wont be able to buy these using coinbase swap. if you're new to this consider either staying with projects on coinbase or watching some youtube videos on how to buy from other exchanges. take your time. send tedt amounts etc.