Which are some blogs sources with beautiful interior and exterior house design ideas? 

Which are some blogs sources with beautiful interior and exterior house design ideas?

Well, I would definitely recommend to have a look at some new trend as Cottagecore  on my favorite https://glaminati.com/cottagecore-aesthetic-trend/  You see, the main focus is though on the sustainable and harmonious relationship with the environment. Moreover, Cottage core suggests that fairies and witches exist in real life. The concept also has other names, such as Countrycore and Farmcore. You will definitely like the concept and its ideas as it looks fresh and modern

There are plenty of them online though you have to be very careful on the type of blogs that you spend your time on.

Some of these blogs are auto generated blogs and sometimes put some inconsistent type of content or worse (they may misinform you).

I would always go for blogs that are publications based such as Home Magazine based blogs like these ones - Top 10 Home Improvement Magazines