Bitcoin blockchain is not like password or characters that someone can brute force using a special equipments and tools, only what can happen is miners with over 50% mining hashrate to take advantage of chain reorganization to make 51% attack possible.
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-a1246-96tso 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.