I think some European countries had no capital gains tax after a year also so you could move to one of those.
There are stocks you can invest in that manage funds and assets (eg miners) in crypto hardware over in the UK im not sure if there's the same over there but it might be worth trying to search for a "blockchain etf" that covers the industry BUT these come with less reward in the immediate term.
It's likely the premium paid on funds like grayscale are for the benefits you can achieve with it but it might still be worthwhile as it's a one off tax and not a compounded one.