During covid, the police agreed to do this for my friend although in the end it wasn't necessary and it was a few years ago now.
Before you drop the bombshell, smuggle out important documents and keep them somewhere safe as well as anything irreplaceable to you. Make sure you have copies of all financial documents and account details, mortgages, life insurance, pensions, etc or if safe to do so take the originals.
If I were your friend, even if not close, I would travel to be near you and offer in person support.
WomensAid is a good shout, another very helpful one not usually mentioned here is Refuge, there is advice on both websites about making plans to leave and how to do so safely.
I'd also urge you to contact https://www.ncdv.org.uk/non-molestation-order/
They will arrange a non molestation (restraining) order for you, and your husband won't need to know anything about it until its served. Make sure it includes powers of arrest and that you request they hide/don't display any of your new contact details or address.
The powers of arrest mean the police can arrest him if he breaches it, otherwise its pretty toothless and hiding your new contact details is for your ongoing protection against harassment & worse.
You might feel frightened about his reaction when he finds out he's been served with a non-mol order. I mentioned this to NCDV when I went through the process & they explained that actually many men backed off because they'd admit to the behaviour documented. To my surprise, I found this to be true myself.
It might also be worth speaking to a solicitor for advice about having access to marital finances once in advance and also when you tell him.
Please do share with at least one trusted person who can support you.
Having a second secret phone is helpful if you can keep it safely out of the house. You could WhatsApp photos to yourself of any documents and have important and emergency support contacts stored.