Lots of options here, a small sampling here:
Adjustable Outboard Motor Mounts - iboats
I think the trick for ease of use is to get one rated for a bigger engine than you have. A 9.9 ob usually weighs close to 100 lbs and is often marginal for the basic bracket.
There are other brands that are more elaborate to install but have a longer lift travel, using rope tackle to assist.
You want page 578 of this catalogue:
Plastimo
Once you pick a model you might be able to get Steveston, Martin, Nikka, or -gasp- West Marine to order one in for you.