Design a Logo

I am looking for a creative logo designer to create a logo for me for a product with slogan of that product as well. Need 1 complete design and delivery must be industry standard file and versions for use for different purposes! You will be asked to show sample design you have in mind after knowing about product. Final delivery should be in standard sizes and vector file as well to size it to any dimension! Also I would like 8 different versions of logo with slight modifications but base design can remain same. Thanks!