$30k isn't small amount. That's at least a year of saving if you are from a rich country. You should split that into multi bag or multi investment to lessen the risk of anything going wrong. Goes from the top coin in CMC (BTC, ETH,...) to some mid and lower one.
Top coin would be a safeway investment, but i doubt it would bring u to any 10x return. My suggestion is to invest on dApps platform since we already saw ETH, BNB, and SOL rise so hard, probably another dApps would become next project to be pumped.
looking for a lot of profit is also the same as requiring a big risk to go up by 10x. I like the coin category you suggest ETH,BNB,SOL it's good to save the altcoin season now. the end of the year will be the year of the most extra profit...?