To mine bitcoin, with the present difficulty adjustment, you will need powerful ASIC miners like Antminer S19j Pro, Antminer L7, Antminer Goldshell KD6 to mine bitcoin. You will have to join a mining pool. To summarize this, you will need to make sure mining bitcoin is legal in your country, calculate the electricity cost and also if your area have cold weather.
I hope people like philipma1957 will give you better options to go for about this.
Okay as you requested I will direct a few guess at Ms milf or mrs majestic
Newer machines that hash at a profit are
bitmain s19s they are a bit more reliable then bitmain s17 pros and a bit more efficient you must use 200-245 volts to run them.
avalon 1246 are decent
and whatsminer m30 or m31 gear is good.
all of the above pull a lot of power and are very loud
but they make a profit at 8 cent power.
an s19 burns 3.4 x 24 = 80-85 watts 85 x 8 cents = 6.80 usd burnt in a day and some do 100th which is about 9.1 x 100 = $9.10
profit of 9.10-6.80 = $2.30 a day which if steady means it earns only 840 in a year considering bitmain wants like 5.4k it is too fucking costly
canaan.io is blowing out their best gear
https://shop.canaan.io/products/canaan-avalon-miner-a1246-96t
so 96 x 9.1 cents is $8.73 a day burns about 85 kwatts or $6.80 so it nets 8.73-6.80= $1.90 a day and costs 3831
they cost more as shipping and import tax is not included so both would take 7 years to pay at current rates.
a fucking joke.
I found used s17pros with heatsink mods on ebay
https://www.ebay.com/itm/403701589089?
these sold out yesterday I would argue if the seller is honest this is the best deal around. But still over priced.
you can clock this to 1100 watts which is about 28 kwatts or $2.24 a day burnt they would earn 40 x 9.1 = 3.64
so 3.61 - 2.24 = 1.37 a day so on 1000 days you make 1370 which is almost break even. still not good. deal but the best I could find in the last two days.
I would not buy an asic that needs 1000 days to break even but it is better than buying an asic that need 2000 days to break even.
I freeze daily numbers to get the days to break even sometimes it stays very flat sometimes it gets better some time it gets worse.
that's why I like ASICs at 300 to 400 days to break even not 1000 to 2000
gear is stupidly over priced for an 8 cent miner
btw it is over price for a 7 cent miner
and it is over priced for a 6 cent miner
if you were a 5 cent miner the sold out s17 pro on ebay would pay off in 700 days
if you were a 2 cent miner (very rare) it would take 459 days to pay off still shitty.
I am a low power cost miner but closer to 5 cents not 2 cents. So I did not get those units.