We often earn money from youtube channel by showing ads from adsense and suppose if someone want to earn bitcoin by showing ads on their youtube videos then is there any alternative ad network which provide ads for youtube channel?
Not the other way to monetize videos from youtube besides google. Today to earn some money with youtube videos you have to have a very good and worked content (which is usually necessary and more than 1 person to do that ends up causing extra costs) and has a target audience. But I have seen in recent months that youtube has gradually cut the remuneration of the creators of content, who received 100 today receives 50.40. So, I would not recommend this platform to make money, there are more fun means like the blogger himself offered by google.