Learn Bitcoin, are you planning to mine? In here in Bangladesh? I don't think that's a good idea. You know how unreliable electricity is in our country. We don't have enough electricity to fulfill our demand. Where I live in load shedding is happening all the time. Electricity price per watt also went up recently. So I don't know if that's a good move.
Surely it won't be a good move since the electricity cost has increased. But, I was wondering if there are any ASIC miners that can be profitable even with such electricity costs. All I found is some Bitcoin miner with very low profitability. I also thought about other mining gears like Chia HDD farming a while ago, but I don't think it's worth spending that much to farm chia. I saw how HNT mining was creating hype at some point and then slowly disappeared. I feel like the Kaspa mining has the same future.
My suggestion would be try to reach out the miners of Bangladesh. They might be able to show you the current reality of mining in Bangldesh. Mining gig is can be very expensive. So before investing, you should consider those, cause the amount is big.
I anonymously contacted some miners who were attempting to sell their ASIC but unfortunately, when you talk with a seller, they won't give you the correct information. Most of their ASIC miners become a lose project because those are old miners.