What is the best for profit?
Well this is a question that doesn't have a direct answer because you can be on a loss either way.
Talking about the most known coins for GPU mining, ETH and ETC you can go both ways, if you have a good electrical price, you can sell as you mine and bring profit almost everyday, but there's a catch, what if the currency moons in short or medium time? I think if you really believe in a project and want to mine, holding is the best choice, an example is the sudden rise in ETH price, if you been holding for some time you would profit big.
If you want to mine BTC, BCH, DASH, etc., non-ASICS resistent coins you have to make a big investment to profit big, I'm talking in tens of thousand dollars. You wil have to buy some ASICS which is a machine that is focused in a certain algorithm like SHA256, Scrypt, etc., this are very expensive if you want to mine big, if you have the money and low electricity cost you can setup a farm with multiple ASICS and profit, the more you have the more you earn. You can check out Antminer to see the offers they have. All this consider i think in this case you should mine to sell until you have made your ROI (return on investment), after that it is your own choice, if you hold in the long time you can be rewarded, if you continue to sell as you mine you will continue your expected earnings and there's not much risk about this choice as you have already paid your investment.
My favourite are ASIC resistent algorithms, that means that an ASIC can't mine that coin, only GPUs, so everyone at home can setup a rig and mine, or mine directly from their daily use PC when it is idle. The majority still stays with ETH on this but you have one coin that perfomes very well in a GPU, Ravencoin. Ravencoin mines with KawPow algorithm, this one is completely ASIC resistant and has a very low difficulty to mine, in the begining of KawPow a GTX 1665 could mine up to 50 dollars of RVN in a month. You have some other coins in ETH algo you can mine aswell like Beam. Equihash is also a good algo to mine with ZCash being the top coin. Then you have the X21s algo that mines forks of RVN, like Ritocoin, a very unknown coin but with a very easy mining. You also may want to check out Conflux, a recent coin that mines under octopus algo. My opinion in this coins is holding them, the most of them still didn't rise to their true potential and may give you a good profit in the future.
Another very popular Algo is RandomX, the Monero algorithm. This one mines with CPU the best, you can mine it in GPUs but you will have lower hashrate. Right now XMR is unprofitable if you have to pay for electricity, so in my opinion the only way to go is holding, Monero has high potential and can earn you a big profit in the upcoming years.
Mining really depends on what you want to achieve and how many risks are you willing to take. Remember mining always helps the blockchain you are mining on. Try not to choose the top pool to mine, that way you also help in decentralization.
Hope you like this post, happy holidays and best regards.
Cryptopeach
Source (my own post in read.cash): https://read.cash/@Cryptopeach/public-thoughts-9-mine-to-sell-or-mine-to-hold-2872d64c
