Few weeks ago I came across this website "asicprofit com" and it seems like they have real-time data from the asic market. Can anyone else confirm? It seems it is highly accurate and updates in real-time lol. Also there are some calculators for almost every coin. Which site do you use for checking ASIC profitability? They also do not advertise any seller so it seems really good 
AsicProfit is definably the most accurate for kaspa calculations https://www.asicprofit.com/ . And also as far as I know that was the first initiative talked in bitcoin mining conference that all calculators after KASPA protocol update has stopped working properly and than fully working KASPA calculator was born here: https://www.asicprofit.com/calculators/KAS. It was plus minus at 2nd quarter of 2024.