If I were launching a new coin and I wanted instant hashpower, I'd choose the current equihash params and do something like komodo with cross chain proving to bitcoin. Easy to get people interested in mining your coin if they cant mine anything else lol
I would think this too except look at the Blake2b algo. There is literally nothing to mine on that other than SC. I would jump my A3 on anything else if I could. Really not sure why nobody else has made anything else for that algo, plenty of existing hardware currently going to waste that could support something new.