Nicehash and Mining Rig Rentals are "hashrate marketplace" or "hashpower marketplace", not "cloud mining". I don't know about Mining Rig Rentals, but NiceHash have partially lose it's reputation due to questionable policy such as higher minimum withdraw amount, inactive fee and more strict identity verification requirement.
I wouldn't bother with any of those, when earning profit reliably if your goal.
What's the difference? You're still mining remotely. Marketplace or mining contract, everything's the same to me.
The main difference is the source of the hashrate. On cloud mining, the source is the cloud mining company. But on hashrate marketplace, the source comes from many people/group. In addition, hashrate marketplace usually offer advance option such as choose which mining pool to use and can choose how long to buy specific amount of hashrate.
I think it's best to have someone you trust run the miners for you. That person could be in a distant country and pass on the earnings to you. We can't trust mining companies or marketplaces these days. Especially when they're often a target of scams. Some even go as far as asking ID verification documents (KYC) from you. A huge "no-go" for me.
I get your point. BTW, such service already exist under name of "Mining hosting" or "Mining colocation" where you send your ASIC to them.