Choosing free data hosting for Evernote analogue: noSQL?

Question

NoSQL

Hello,
Let's say I want to develop something like Evernote (based on WPF .net), i.e. in terms of functionality, these are:
1. A simple database structure, 2-3 tables, the amount of data is small. For simplicity, we consider that the data is textual (or easily serializable).
2. Operations: CRUD, plus search in the text of records (optional).
3. Naturally online.
And in general, everything. Question: does it make sense to use noSQL for these purposes? For example, I googled the service: orchestrate.io . Surely there are free sites for CouchDB, MongoDB, etc. Using the REST API for the network part is very tempting. Or is MS SQL better suited (although it hardly has free sites)?
And the second question, if you do the server part with your hands - is asp vNext suitable for these purposes? Where can I find an example/book?