Not sure if researchgate is still a thing. I had it and uploaded all my papers there. They show up automatically on Google. I believe this is allowed since you’re allowed to share copies of your publication on your website.
The problem is my researchgate account was connected to my academic account. It’s been a while since I graduated so I’ve lost access to my own publications and page.
But I used to use researchgate and requests in researchgate quite a bit.
Nothing lasts forever, but the model of buying a paper for 40$ from Elsevier isn't much better.
Depending on the field there are other sources, but still a hit rate is about 85-90%.
I'm a proud user of sci-hub but when I was still in academics, I have never used it. My school has access to all the journals I ever needed, plus more old non-digitized ones I can borrow from library (including interlibrary access).
It depends on the discipline, also the mode of learning (I'm distance learning so no physical library access).
My uni (Northampton) has access to a LOT of journals... but has a blindspot in management, specifically accountancy focus journals; am doing my lit review for my MSc dissertation and the number of times I hit a dead end is frustrating.
Sci-hub and Annas-Archive are also not interested in that segment, so double whammy.
But surprisingly Archive.org was able to help me out a bit, so thanks for that.
scihub is dying unfortunately :( the good news is it is happening just as all the fields i'm interested in except for some experimental physics & biology have moved to OA
sci-hub proper hasn't been updated since it's indefinite pause in december 2020.
Alternatives are of variable success depending on field. It might be better for CS/Math, but medicine and life sciences it's pretty bad.
Sci-Hub complied with the order with the intent to actually argue their case (and possibly establish a legal justification for the site), rather than just defying the order and continuing to play cat-and-mouse with every authority.