Which are some good System design questions ?

I am preparing for interviews and never had any system design round before. Not sure how should I start preparing. I know there are lots of videos out there, but don't want to follow some random posts. Seen posts from bytebytego but they are most random posts . Rather looking for a way to learn systematically from scratch even though I might many of them. Looking for free resources

What is best system design course available? Could you please list top 3 in order with best as 1. Also mention what type of candidates are best suited for each course. I’m currently going through interview ready- Gaurav Sen. And find it hard to follow since I have almost never done system design. Hence I find it ok-ok , are there any better ones out there? I know grokking is one more. Please provide suggestions with course name and best suited for what professionals(eg , beginner with no exposure to system design , 5 yoe with some exposure to system design , advanced with high exposure system design)

I believe most of the questions available on the internet are quite redundant to test someone's system design knowledge. I'm not looking for typical questions like building YouTube/Instagram/Whatsapp, which are only for beginners. I'm looking for questions which you are able to answer on the basis of your personal experience, in depth questions. e.g how did you use indexing/sharding/query optimisation/rate limiting etc in your project? what would you do in a so&so situation? the questions which show me whether a person has actually worked on the systems instead of just having the theoretical knowledge. I know it depends on how the interviewer asks the question, because it's supposed to be vague but I'm still looking for very specific questions. So please tell me, what are such questions which you like to ask someone or the questions which you were asked in an interview ? or just share your interesting system design interview experience, would be helpful to others.

Is it to sufficient to read books like Design data intensive applications and books from Alex Xu sufficient for system design interviews? If not, then what other resources would help? Thanks in advance!

Hi Looking for suggestions on resources which will be useful in preparation for meta system design interview. TIA

Have more companies started asking system design to freshers? What topics to focus on? What should be a fresher approach, what to focus on: DSA/tech stack/system design

I have interviewed few times in SAAS domain, and in System Design round, I feel that I lack some basic understanding sometimes. It is obvious because I have not worked in such domain, but my Tech Interviews include things like Multi Tenancy, CQRS and what not. Any suggestions, resources, blogs that can help me ramp up for SAAS based System Design Interviews?

Please suggest some good resources where system design is well explained from basics.