Language Tools has a new audio service called CereProc, added at the request of a fellow patreon fan. It brings 34 English/UK voices and 19 English/US voices, as well as various latin language voices.
These new voices are available right now in Language Tools, but not yet in AwesomeTTS. As reminder, you can listen to samples of all the voices here: https://languagetools.anki.study/languages
there are now 745 voices available in total for AwesomeTTS Plus / Language Tools users !