Honestly you are better off just selling your GPUs now. The merge is in like 2 weeks and mining profitability will be almost nothing. Every miner will give it a few weeks or so. Hoping that a coin like ETC goes up in value, however there is no gaurantee.
Just like a bitcoin halving event, your profits will be halved, nobody knows how much. However the profits are bad now, it'll be even worse. If the GPUs are worth a decent penny, just sell them to some gamer and buy coins like BTC and ETH and hodl.
It's not going to last forever, a new altcoin will balance things up, also Ethereum PoW coin might be the next big thing, the situation is nobody knows what will happen after the merge we can only wish for the best.