You could try the Kadokawa Tsubasa Bunkou books, the ones with green borders, can be found in most book shops at the kids section… Bookwalker Link : ( 角川つばさ文庫(文芸・小説、マンガ)
Reading a few of them really helped me to become more confident in reading plus some they are not that bad. They are like simplified light novels with more pictures. Plus having furigana on everything really helps when looking up words in the dictionary. Some also have movies like Your Name, Summer Wars.
From time to time, I go on the Bookwalker front page and read the sample of the first volume of anything that takes my fancy… Its kinda weird thing but this way, I have found new series that I like.
For a period, I used to try to read the web novels of some series eg 盾の勇者の成り上がり and use jisho as a dictionary (because its very easy to copy and paste / or just used Yomichan) … However light novels are (for the most part) written better hehe.
There days, I mainly read light novels / manga of the series that got me into learning Japanese or I am really into… For some series like Mushoku Tensei, I read a volume and then watch the anime episodes (with English subs). That way I can enjoy reading something new and enjoy the anime without worrying about comprehension hehe