Brainstorm a good niche?

NOT LOOKING TO BE SPOON FED.

Can anyone give me some tips for coming up with a good niche on my own? Seems all the niches i think up have some kind of problems with restrictions or limited money making opportunities.

How do i brainstorm a good niche? What do i look for? Any tips or tricks?

If you plan on writing most of the content yourself, start by looking at what you are a pro on, your hobbies, etc. Protip: The higher the knowledge level required to build an authority site on that niche (which does not necessarily correlate with lower traffic volumes), the easier will be to beat competition.
Then within that niche look for products that you could promote.
Then go to ahrefs or similar and check the competition/volumes.

look around in your day to day life. I find a lot of niches from social media advert, promos, youtube adverts and forum suggestions