I usually use wanikani for kanji and vocab (I really like their mnemonics), Genki for grammar to get additional context, Satori Reader for easy, accessible learners content to practice reading (I use the free version) and YouTube for podcasts (like yuyuの日本語podcast and okkei japanese)
I use yomitan (pop up dictionary addon) to look up words in japanese texts, NHK easy news and Tadoku Readers (the free books) to read. Bad thing about Tadoku is that Yomitan doesn't analyze the words if you read them on the site and dont download the pdf (not sure if it analyzes pdfs too)
For listening I just use YouTube or Netflix with Language Reactor (though i used it for just a couple of days, and i saw it has a suscription so i dont know if it is fully paid afterwards + it sometimes separated the words weirdly) and I have 2 channels: Waku Waku Japanese (short stories format of videos, entertaining but used ai in some video images if you care about those) and Iroirona Nihongo (a lot of content with explanations in easy Japanese but since he is not a native speaker his accent might be wrong on some words) and whatever i find on my feed.
If want to look up grammar i do it here or on Tofugu (if i cant find it then google or youtube)
For grammar, to supplement what’s on renshuu, I mostly rely on imabi, although it is difficult to find anything there.
For vocabulary, the built-in dictionary in my phone is actually quite good. Kotobank is also an option for really obscure words. Wiktionary is the best source for etymologies. Wikipedia is often good for people, places, myths, plants, fish and insects.
I am constantly looking for good vocabulary mining sources. The ones I have tend to be very caviler about copyright, so I don’t want to mention them here.
I’ve been consistently been studying here and then hand writing the kanjis that I miss often so I can better practice them. Also listening to Japanese YouTube shows helps immerse into the language.
Wanikani is amazing for Kanji (don't make my mistake and ignore the mnemonics! I didn't understand how having to learn MORE was supposed to help but it really slowed me down in the long run. That little bit of extra work initially definitely pays off later!)
If you're doing Wanikani, go ahead and start Kaniwani also! It does the same thing, just backwards, so it really helps strengthen your recall. It syncs with and keeps up with your progress in Wanikani.
I ditched the bird (you know who I'm talking about....) when it got to the point I was just doing the bare minimum to keep my streak going. That time and mental energy is much better spent elsewhere (like Renshuu!)
I also use Anki but I have to admit I'm not as disciplined with it as I should be.... AND! If you like Anki style learning + anime or visual novels, try JPDB! You pick your game or anime and learn the words used in it via SRS, either by season or even episode. It's alot of fun to go through a deck and hear them in my head in the voice of the character I know said it lol You'll see what I mean
Saving this for last because I think it's super, super underrated.... A TUTOR! I have two tutors that fill different roles for my journey- One speaks primarily in English for learning Grammer, and the other primarily in Japanese for listening and speaking practice. I have been doing them 1x a week each for a month now and have seen a lot of improvement with them both. And I adore them equally! The first couple lessons had me so nervous I thought I was gonna hurl, but now I look forward to them! So, so, so, so worth it!!! Please don't wait until you are some sort of "ready" or "perfect with xyz" because they can meet you exactly wherever you are right now and help so so much! There are a bunch of different sites to get tutors on, but I use preply. One of my tutors is $10/lesson and the other is $25/lesson. They are equally AMAZING!! Go for it!
I actually learn a little on youtube using japanesepod101. It is a very helpful channel! You should try it out. I also use pimsleur but it costs some money. You can use youtube though.
In youtube, I watch Cure Dolly Sensei for logical clarity in japanese sentence structure, Speak Japanese Naturally, for immersion + walk and talk kind of video. Amazon Prime Video for movies and series. I ditch Duolingo, the only apps I use are renshuu and JA Sensei.
For learning and practicing reading and kanji, renshuu. For the meaning, yomitan with multiple dictionaries. For grammar, mainly, a site called kokugobunpou as well as a japanese youtube channel called とある男が授業をしてみた (for japanese middle schooler) . And other miscellaneous ressources. All of them being in japanese tho. For writing and studying by theme (food, humand body, art, etc.), an app called JA Sensei. I would like to study by theme on renshuu too but I need to create my own list and I don't always have the time to do so. For immersion, youtube and VRChat. As well as reading random article about various subject from time to time.
Edit: I forgot but I also use a japanese app called 漢字検定DX to study for the kanji kentei. That app is useful to pratice a few thing that you can't typically found on western app (like homophones, antonym, radical name, etc)
I like to use Wagotabi because I love videogames. It's a mobile and computer game. Once you learn more words and sentence structure you can also change the language to Japanese in other games for reading and sometimes listening practice. Also youtube is great for listening.
Mining furiously with ANKI and learning kanji through Kanji Study app. I pair these with immersing myself in japanese media like music, video, tv, and games.
The first couple lessons had me so nervous I thought I was gonna hurl, but now I look forward to them! So, so, so, so worth it!!! Please don't wait until you are some sort of "ready" or "perfect with xyz" because they can meet you exactly wherever you are right now and help so so much! There are a bunch of different sites to get tutors on, but I use preply. One of my tutors is $10/lesson and the other is $25/lesson. They are equally AMAZING!! Go for it! 
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