(If these are bad, my bad too. Closest thing to writing I do is thinking about my OCs.)
OneLook! SUPER helpful. Really awesome. The GOAT. 10/10.
Merriam-Webster! I love the articles about words there. Makes me so happy.
Rewordify! To understand what you read!
Behind The Name!!! Absolute GOAT. There are even SURNAMES and PLACE NAMES and GAHHH!!!
Mixed Name. If you have a character with 2 different cultures, or just have a baby, I dunno.
Baby Names! Still great.