Ill put some that I enjoy and the reason why I love them so here:
catholicgnosis.wordpress.com (exploration of Christian, and specifically Catholic Platonism through history, psychology, and allegorical readings of the Bible, with the intent of developing the whole man and loving God, very good blog for this)
https://www.patheos.com/blogs/henrykarlson/archive-index/ (Byzantine Catholic blog, on many topics, from an eastern perspective, he especially explores relationships between us and the world and God, in a very moving way)
https://zippycatholic.wordpress.com/ (he is now passed away, no longer posting, but he has very good articles on politics, authority, THE book on usury, and many varied topics, his writing for me at least was a little hard to understand at times, but he has one of the best comment sections of all time, READ THE COMMENTS ITS LIKE 70% OF THE SITE)
http://edwardfeser.blogspot.com/ (Catholic Aristotelian philosopher, very good, nough said)
http://www.unamsanctamcatholicam.com/ (explores history, theology, church teaching, and spirituality, good and detailed articles that can be a basis for further research)
Preliminaries to Catholicism | Throne and Altar (I dont read this one much, but this article is worth reading on its own, another politically-focused blog from a Catholic perspective, a monarchist)
ronconte . com (I dont want the box thing so I broke the link, he is an interesting lay theologian who offers new solutions to old problems,and studies biblical chronology amongst other things, he has very many sites, i dont agree with him on everything but he is a stimulating read)
All of the above blogs afaik, or most, do contain many links to other blogs on the sidebar, so you can follow it to find some good content
these arent necessarily Catholic blogs but I do love them and thought to share maybe you’ll love it too, some arent even blogs:
https://afkimel.wordpress.com/ (Eastern Orthodox priest who is a universalist, this gives him a new perspective on many things and I love reading his work)
https://thenephesh.wordpress.com/ (animal theology)
jesusradicals . com (another political Christian site that explores feminism, intersectionality, veganism, anarchism, etc, and many other subjects, about ending oppresions, also a very good read, check their library it has many topics A-Z and articles for each thing)
gornahoor . net (about spiritual development and the politics suited to it, they have interesting articles sometimes exploring specific theologians of Catholicism)
jacobboehmeonline . com (about influential German theologian, whose influences went to all of German philosophy, Catholic mysticism, and even the church ! he was a protestant during the reformation times, he does have errors but makes an interesting idea, do know that the author of this site has his own interpretation of the works)
all in all this is just some of the things I read, but they all link to other sites you could be here for a lifetime and not reach the end