There are lots of companies and individuals who will do assessments at different price points. You can also use AI to have a go at assessing your season from a photo.
I’ve had several assessments over many years and think https/yourcolorguru.com probably represents the best value for money.
You can assess yourself. This is a simple way to start!
Start with metal colours. Do you prefer gold or silver jewellery? Try holding a piece of gold jewellery against your face or the back of your hand and then try silver. One will make you look healthier (best way I can describe it). If silver is your best metal you are likely to be a ‘cool’ summer or winter. If gold is your best metal then you are probably a ‘warm’ spring or autumn.
Once you have an idea of whether you are cool or warm you can think about the colours you wear that draw compliments and are perhaps colours you choose to wear already.
That’s a low cost way to start, but I’d also recommend going with the colours that make you happy! Listen to your gut feeling and choose what makes you happy!