That depends on when you need the money.
If you bought the rig on credit (horrible idea) or spent money that you need for something else then you should be looking to pay it off asap. And with that be mining the most profitable coin per day and selling it each day back to fiat so you are gaining money with least amount of risk. This tends not to be the most profitable approach but is the safest.
I tend not to mine coins that are “trustable” because they are established and with that have a larger network hash rate compared other coins (meaning your fighting more people for the coin and thus get less coins). Now one of my fall back coins is LUX but I’ve mined so much that its no longer a priority for me to mine it unless it looks like the price is going to rebound (which when it does im selling my stockpile). Currently my fallback coin is BTCP because the network hashrate is so low compared to what it was before that I am able to stockpile a good bit of it and I think the price can only go up long term.
What I tend to put most of my hash power to because money isn’t an immediate concern for me is hunting for the next coin to explode and mining that. IE mining RVN before it was popular got me and others thousands of dollars profit for a very short amount of time mining it. The problem with this approach is you need to be constantly searching and a lot of the coins end up making no money at all.
Hope this helps.