Mills and Boon are running a masterclass in Paradise Road on 28th February. Price is a hefty £195, but maybe if you live in London that looks like a snip.
Details are here:
https://www.eventbrite.co.uk/e/mills-boon-romance-writing-masterclass-february-tickets-15327241191
I once attended one of their days in Newcastle and found it useful and fun. If you go do report back and tell us all.