i think he want to invest in cloud or buy miners directly, you can try bitmain, they are legit, or invest in hashnest cloud mining, another legit website
At this time avoid all cloud mining except hashnest. A lot were running on old gear that just is not profitable anymore. But hashnest has lot's of options you can get a entire miner worth of hash.
Keep in mind a lot of hashnest ROI can be luck on mining for so long and selling hash at right time. There is no guarantee on profit.