I originally started learning Japanese because I was a major otaku and thought it was fun to do, so once I got enough knowledge to read without giving myself an aneurysm I tried knocking out some of my favorite series.
flowers of evil
Final Fantasy 1,4,7,8,9 and 10
Breath of the Wild
Welcome to the NHK
Haruhi Suzumiya (all)
Kino’s Journey (1-10)
Kiki’s Delivery Service (all)
夢を叶えるゾウ (The elephant that makes dreams come true)
3 World Histroy books
1 Music History book
several programming books
and of course a ton of anime
After finishing Wanikani I tried out Anki but I didn’t really like how it messed with my enjoyment of reading. It caused me to be very neurotic about memorizing vocabulary and took the fun out of Japanese and reading in general for me so I eventually dropped it and put more energy into learning from the books as opposed to the sentence by sentence vocabulary and grammar rule dissection which it had become. While I may not be “studying” the language I feel I have a more healthy relationship with it now focussed on enjoyment rather than grinding up my stats.
As a side note, I started actively reading in Japanese when I was around level 20 in Wanikani. Even though it was difficult I put more attention onto reading than I ever did into the SRS system. I admit the SRS helped me out a lot but I’m human and as a human, I want to enjoy things too.
Also, I wanted to anger a few people near the end; I think grammar study is a myth, and the more rules you study the more unnatural you’re going to sound if you haven’t supplemented your studies with enough immersion. You’ll probably find yourself trying to fit a cylinder into a square hole, even though you have the right tools for the job you don’t have enough experience with Japanese to know the difference between what might work and what might sound awkward and land way out in left field. JLPT is for masochists who want to take the fun out of everything or I guess for people who want jobs (although I managed to become a 入社員 without even an N5, although that’s probably because they valued the skills I had other than Japanese too)
Hope this helped and good luck in the future!