Hi there Mark, welcome here to the forum

What type of care work is your wife interested in?

Child
Elderly
Residential Care units
Community Care
Nursing Home
etc etc

Here in UK there's no requirement for any specific qualification to gain entry level employments as a carer.
Most residential care homes and nursing homes carry around 30% of unqualified staff (most under training) and the remainder as skilled staff or senior carers with around 10% involved as supervisors and care management.

It's required that each employer should have a certain percentage of staff qualified to NVQ2 level
All employers will engage new employees with their in-house induction and will offer the opportunity to take up NVQ training for qualification.
This is nearly always freely given as on-the-job training while you are actually working.

Anyone wanting to progress their career will be able to move up the NVQ levels or attend local college courses in various levels of social care.

My wife used to be a Community Careworker. Means she would visit people in their homes to provide whatever care was needed. She was a 'walker carer' in our small village.
She is now working in a local Residential Care home and she is responsible for a specialised dementia unit.
She has been involved with care for over 4 years now.

TESDA (Technical Education and Skills Development Authority) is an agency in the Philippines that organises and provides various training programs.
Among those offered is a Caregiver Course.

My own personal view is that your wife should NOT need to spend money and time undergoing such a course. It will certainly not give her any edge or extra help in securing care employment here in the UK. May I suggest that she concentrates on improving her English language speaking and listening skills as much as possible, especially for care work.
This would be much better achieved here in UK where she can 'tune' her ears to the language of those who need care.
I aslo believe it would be better advise to utilise any money to submit a spouse visa application asap. She will hopefully find herself here in UK with you as support as she settles down to a new life and finds her feet around a whole new set of challenges.

Of course, it's a decision for you both, but in general you will find that most qualifications from Philippines will not be accepted in UK at the same level of specialisation.

If you have any specific questions, concerns or doubts just post here plenty of people will help and support.

No offence intended Mark. Just my opinion.

Do you plan to live in an area where there are a number of employment opportunities for her?