
1) Bombastic ones 2) Bombastic speakers 3) Highly opinionated sorts 4) Kin of ravers 5) Ones on soapboxes 6) Soapbox orators 7) They carry on 8) Tub-thumpers
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https://www.crosswordclues.com/clue/ranters

1) Railers
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https://www.crosswordclues.com/clue/ranters

(from the article `Claxton, Laurence`) preacher and pamphleteer, leader of the radical English religious sect known as the Ranters.The Ranters provide a good example of the conflict between mysticism and established religion. They held, with Fox and Hendrik Niclaes, that ... [4 related articles]
Found on
http://www.britannica.com/eb/a-z/r/12

English religious sect; one of the many groups that arose during the English Civil War. The Ranters pressed for radical reforms during the
Commonwealth period (1649-60). Known for their ecstatic...
Found on
http://www.encyclo.co.uk/local/20688
No exact match found.