Reddit mentions of Clairefontaine Classic Wirebound Notebooks 8 1/4 in. x 11 3/4 in. ruled with margin 50 sheets colors may vary

Maybe Clairfontaine? I love my Rhodia notebooks and they use Clairfontaine paper. I use them with my brush pens and I became hooked. Excellent paper, I wish I found it when I was in school.

I have been trying out a bunch of different notebook varieties in A4 and B5 sizes, but my steadies are Clairefontaine notebooks. They're not the cheapest of all possible options, but I find them just right for me.

Did a quick pen test for you just in case you wanted to compare a little bit between the Kokuyo (first 2 pictures) and the Muji (last 2 pictures): https://imgur.com/a/8ru8tT3

Overall I think the Kokuyo has the edge.

I know you said you wanted to keep it to Amazon, but I just bought an Apica from a local stationery store and I really like it. You can get them from JetPens (shipping has never taken long for me, personally). They come in grid/ruled/etc. Link to the graph here: https://www.jetpens.com/Apica-Blank-Cover-Twin-Ring-Notebook-Semi-B5-Graph/pd/13868

I've also heard great things about Clairefontaine notebooks, looks like Amazon has 2 for $10, though these are A4 size. Link: https://www.amazon.com/dp/B005YF476O/ref=cm_sw_r_cp_api_i_yR1wDbPSGZ9CX

Apologies if it's a bit messy, I'm on mobile!

Hmm. That's interesting that it bleeds so much.

If you're the kind of person who likes individual notebooks for every class/subject, there are a few good choices.
Clairfontaine and Black 'n Red are both very popular. I've tried both, although not extensively. The downside to these is the price. If you are taking 4 or more classes, or even some note taking heavy classes where you may need multiple notebooks, the sticker shock factor grows quick.

For loose leaf/3 ring I'd recommend HP brand Premium Laser Jet paper. Either 22lb or 32lb. 22lb is great, and has handled everything I've thrown at it. The 32lb paper is really nice, and almost as thick as cardstock. A ream costs a fair amount, however. If you want it lined, you can find notebook paper templates on line, and have it printed for pretty cheap if you're providing the paper. You could go further, and have them bind notebooks. You'd have to get quotes though, and see if it's worth it to you.

EDIT: Also, buying those HP brand papers is WAY cheaper at the box of 5 reams level. That could possibly be all of a persons collegiate notes. https://www.amazon.com/HP-Printer-LaserJet-Letter-115300R/dp/B004HME07G

If it costs 30$ to buy the paper, then $.07 per page printing(largely the dependant factor, this is a conservative estimate not including price of 3 hole punching), that comes out to be $.08 per page. Compared to a 10 dollar notebook that has 70 pages(black and red. Clairefontaine only has 50) that costs $.20 per page.

Now I'm starting to wish I had bought the paper in bulk! I've bought 3 reams separately so far!