Hi Bebe, welcome to MoB!
I can thoroughly recommend Burlesque Baby, it's very friendly and relaxed and the teacher is very patient with beginners!

The 7-week super course covers burlesque, pole dancing and modern striptease so there's a bit of everything in there which means you cover a few different styles and can decide what sort of thing suits you.
If you want to do just burlesque, Burlesque Baby also run 4-week burlesque courses, and I've heard really good things about London School of Striptease too. Ministry of Burlesque also do classes but I'm not sure when the next beginners one is - check the website.
I'd suggest having a look around on the net and on this forum and seeing which course you think might suit you. I wouldn't worry about finding anything too advanced, if it says "beginners" then it will be fine for newcomers, and if you're unsure just email the organisers/school and ask - I always do!
The burlesque world is very friendly, in my experience even the most established performers have no problems answering any queries, and there are always the lovely ladies and gents on this forum who will happily advise, discuss, tease and titilate...well maybe the last ones only when performing but you never know
Good luck, you'll never regret learning burly!
Honey x