@Melina - Hmmm quite a thing, You are right to give it some careful consideration, as the repercussions can be surprisingly profound.
Maybe you you will make it big one day, maybe you won't, but you might want to develop and nurture a brand, which is almost impossible if you don't have synchronised Website, email address, Socials etc.
I can recommend a single word as it's snappy and a bit easier to remember, smaller on posters, easier to type in Google etc.
Something that makes people think, a play on meanings is always good, something that causes a reaction (good or bad) both are fine as long as it's memorable and appropriate for the genre that you are promoting.
For example if you plump for Melina I bet you won't get the website melina.com, if you sold your work on Amazon, itunes Spotify would they find you under the same name?
So get your presence sorted first, you might have to compromise but get everything in place.
Vroom, you might get that but does it match your genre? if you are EDM then great, but a Folk singer might be better to use something else.
You might consider foreign words like Riski, or something with a double meaning like Rich (both wealth but difficult to digest)
So, as you rightly said in your opening piece, there's a bit to consider.
Anyway hope this helps Melina
I remember in the old Musicians Union member handbook one could look up all the Artists that were members, there were 2 Brian May's...
I would be interested in what you decide, and of course best of luck with it.
Rich