What If the idea is already exist in market ?

Read a book called “the mom test” by Rob Fitzpatrick. Do several interviews. Find pain points of customer using competitor products. Determine if the market size is big enough to have several competitors. There plenty of car brands, there plenty of fast cook restaurants, clothing lines etc. Point being you don’t need to have a ground breaking innovation. You just need to provide more value than the other guy

Need answers to this question; "Why would I switch from this product to another idea?" Some answers; - it's better - it's cheaper - it has X or doesnt have Z

I've heard several VC professionals say that it's not about the idea, but about the implementation. The fact that there are companies on the market built on a similar idea proves two things: 1. There is a demand for your idea, since many companies are working on it. 2. It's commercially feasible, as some of them are successful. So, I think an MVP is a good start if you can create it in a reasonable amount of time, effort, and investment. Anyway, goog luck! 😊

if the idea exists than its more likely to be a great idea. if you have that killer advantage whether its skill / network etc then competitors don't matter, but actually help confirm that the idea works and helps push you to make your product better than theirs

Yep, like the hunters explained in the comments, I suppose if you propose a product that solves a problem you find in your concurrents products, and that is worth switching from the inital product, that's already a win. Easier said than done of course.

+1 Without knowing the details…I would say focus on talking to users and finding a more niche underserved need. There was MySpace before FB, Lyft before Uber, Google Drive before Dropbox, Skype before Zoom, Adobe before Canva…hope that helps.