Hi pompeyjazz - SongPad is designed support songwriters with all aspects of songwriting including:
Song outlines
Rhymes, Synonyms and Antonyms
Syllable count
Lyric Helper
Chords
Audio recordings
and much more...
The Lyric Helper does use AI but it's there to help with writers block etc, not write full songs for you.
Give it a try, it's free and quite fun
Cheers