The best green web hosting in 2021 are
GreenGeeks is the best eco-friendly it covers all the features like you can use a large amount of data(images and videos), highly secured, high speed, and highly optimized WordPress with just 2.49$/month.
A2 Hosting is also an eco-friendly that offers all the feature that includes high security, speed, free domain but it has no cheap plans, a domain name is not free and the renewal rate is high.
iPage- eco-friendly that offers all the feature that includes high security, speed, free domain name but after the initial term, the renewal price is higher, Domain price is higher than usual after the first year. Site building functionality is limited unless you upgrade to one of the more expensive plans.