How about an analytic tool that takes the guesswork out of choosing the best online business to start?

I have an idea to develop an online tool that will help a new entrepreneur choose which online business best matches an individual’s disposition and personal circumstance such as their existing skills, education, time availability (full or part-time), disposable income, personality traits etc. The idea is to progressively ask simple (non-technical) questions from general to more specifics and hence narrow the choice of the online business that best matches the personal attributes identified from the answers provided to the questions raised.

I would like to sound out the community on the following:

If such a tool were created what important features would you like it to have in order to use it or recommend it for people who want to start an online business?
For those of you who have started an online business in the recent past, what was your most difficult challenge deciding which particular online business to start and which factors were the most important in how you finally decided on which one to start?
If you also recently started an online business but had to change to another online business could you please share your major considerations in making the change?
If anyone of you would be interested in testing an MVP could you please indicate? Thanks
Finally, if you could spare some time I would highly welcome any advice or suggestions to put this together