I'm not knocking exercising at home, it works great for loads of people.
Honestly I'm just dubious about anything that is spendy that relies on you suddenly being motivated to exercise at home because you've spend $$$. There's so much on youtube and charity shops are full of old exercise DVDs. Try that first. If you're not into any of that, are you really going to suddenly start doing something on your telly because you've spent $$$ on it?
If you can find a group fitness class nearby that is welcoming and suitable for your fitness level, normally you can get a free first go, and then try a few classes for less than £30. Rates for group classes are from as little as £5, rarely more than £10 a go. Most instructors offer bulk or subscription discounts because it helps their retention and cash flow.
For example here's a way to find your nearest Boxercise class (not all instructors are on here, but it's a good start)
https://www.boxercise.co.uk/instructor-search#/
If you want to go with home exercise and are thinking of a paid subscription, could get Les Mills Plus for a year for £135, usual price £180 per year. There is a huge selection on there (but honestly you can only do one thing at a time so having 100 Body Pump tapes online isn't actually much more use than having 5)
https://try.lesmillsondemand.com/summer-sale/
Good luck!