https://www.natcorp.ox.ac.uk/index.xml – BNC
https://www.lextutor.ca/
https://www.lextutor.ca/concordancers/multi/ – мультиконкордансы
https://beta.sketchengine.co.uk/open/–
https://corpus.byu.edu/coca/?c=coca&q=11080967 – COCA: Corpus of Contemporary American English
https://quod.lib.umich.edu/m/micase/ - Michigan Corpus of Academic Spoken English, homepage
https://micase.elicorpora.info/ – Michigan Corpus of Academic Spoken English
https://anc.org/ – The American National Corpus (ANC) https://linserv1.cims.nyu.edu:23232/ngram_oanc/ – The American National Corpus, open access
https://ruscorpora.ru/index.html – национальный корпус русского языка
https://ruscorpora.ru/search-main.html
(https://www.gramota.ru/ – Gramota.ru – интересный портал, посвященный русскому языку (при поддержке Института русского языка РАН)).