The main competitors to WordPress are Wix, Squarespace and Webflow, which despite their greater expense on a monthly basis do indeed offer a rich and useful product to the general user. They have to, after all.
Unfortunately these companies, despite their best efforts, are still dependent on outside investors to grow their market share. I think the reliance on outside investment is concerning because at this point in history it would be wise to avoid exposure to systems that are dependent on American finance.
They must chase a volume market because the value of their platforms is so intrinsically low.
That means Wix, Squarespace and Webflow are out. Not only does working with them entail locking yourself into a single provider, that same provider harvests and sells your data, reserves his right to break his agreement with you whenever he wants for no reason at all, and may even just vanish overnight because a serious problem in U.S. finance has made access to credit impossible.
Remember the “Credit Crunch” of 2008? Let’s not be caught up in that again.
The free and open source nature of WordPress means it will always be here, because it can be run anywhere by anyone.