Families Need Fathers is a leading "UK charity supporting dads, mums and grandparents to have personal contact and meaningful relationships with their children following parental separation".
They offer a range of support services for men going through separations and divorces, including a national helpline: 0300 0330 363 (9am – 10pm Monday to Friday, 10am – 3pm at weekends).
Here is a link to their get help page which includes resources offered by them, as well as related resources that might be useful for separated fathers:
https://fnf.org.uk/get-help-menu/get-help
https://fnf.org.uk/help-and-support-2/emotional-support
They also accept donations and have membership options if you're interested.
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