nft is more promising crypto today in the market except ethereum and bitcoin, nevertheless if you're looking for another alternative investment i suggest to pick the most trusted projects which is those who already made a history.. Coz you have a big capital so make sure you can pick a good investment especially long term , make research instead so that you know how to choose a good project nowadays.

Ps. Never trust to someone who's referring a projects if you want to prevent scam.  Be practical and make your own research to gain specific information before you invest your money..