Welcome to the wonderful world of pinball & Pinside.
Choice paralysis does exist - both on Netflix & choosing a pinball machine. Both are good problems to have.
Over analysing is better than rushing into a decision you may regret. These things aren’t cheap, so doing your homework is prudent.
I’d say go out and play as many machines as you can (from all manufacturers), but in this current virus situation this option isn’t (or may not be) available in your area. If you or your family have favourite themes, then that may be a good start and steer you towards a certain machine. Hope that helps. Good luck and have fun choosing your first pin!