Amazon (especially the kindle store) is a fantastic bet to publish your novel but take into consideration that if you do decide to publish there, you will have the option to choose 'KDP SELECT' & if you do, your book will have to remain exclusive only to /Amazon/Kindle for at least three months.
(You must therefore not publish on any other platform digitally!)
This is not a bad thing though (Amazon is BIG) as it provides you the option for folk to download your book for free, for periods of up to five days consecutively, (when you put KDP SELECT option into action) in the hope that, some readers of your work will at least leave you feedback & star ratings for your book which, in the long run, could help get the (paid) sales of your new book off the ground.
(There's nothing like real feedback from real folk!)
Good luck with your publishing, there are many options as in the previous answer from Audrey Baker