We want to get a companion for Her Royal Siamese-ness and have waaay too many choices. Over Christmas we tried with a beautiful long-haired, formerly feral female tabby from a local rescue group. Since Taffy is very spoiled, we thought it might be a good idea to get one that really liked other cats by wasn't overly attached to humans. I won't go into the long story of why it didn't work out, but we ended up returning the poor thing before her health suffered from being cornered on top of the kitchen cabinets by our cat. It's possible Taffy was merely curious, but by that time it didn't matter - this high strung tabby was so frightened she couldn't calm down. She kept getting out of the bedroom we were keeping her in because she was used to a busy shelter with lots going on, but our little monster kept chasing her into new hiding places... sigh.
So now we're looking for something a little bit more people-friendly. We have the choices of a 10 year old black male (Taffy is coming up on 14), a 3 year old but reputedly very laid back male (also jet black), another 3 year old orange-buff male that likes other cats, a timid little orange female that our cat sitter is rescuing (likes people but still don't know if she's cat-friendly), a big five year old blue-point siamese that is sort of an alpha male but gets on with most cats... Just too many to choose from. I get the feeling a male might be a better bet.
Another siamese would be lovely, but I also like black cats... and the orange-buff one looks like a big teddy bear.
It was easy picking Taffy - she just batted her big blue eyes at my husband and he was putty in her paws. Just pure good luck she regarded our old male tabby as an oversized kitten that needed frequent ear-washing.