I usually try to mash words together, or take a popular name and mash it together.
"Tathan", I came up with this one .. . . idk, I just did, lol
"Liselle", it's one of my favorite names ever. I don't remember where it came from, but I love it.
"Vevin", Yeah, not sure how I got that one, I think I just worked on different sounds and finally found one I liked.
"Sir Danth", Tried Sir- lots of different things. Ended up with Dan + th.
"Hulda" - Hilda with a U.
"Mariella" - name generator from the Neverwinter Nights game. Great name though.
"Anilyia" - google search for the least common spelling of that name sound.
Most of it's just guessing and putting different letters and sounds together. I spent some time as a DM, which gives a person the opportunity to make up a lot of names.