What sign is a good match for this 54 (16.6.56) year old man?

Well you're a Gemini....duh. Go get your chart done and post it and let's see what works for you.

But for the sake of this discussion I will say that you need another air sign, if you value your freedom, which most Gemini's do. There is one part that wants to play the field and another part that wants the security of home. But you need a partner who will allow both, Aquarius would be good for that because we really don't care if you come home or not - just send the check and keep the bills paid. But if you do show up from time to time, we are not opposed to having fun while you are there. Just don't suffocate us please.

That is a sarcastic but true analogy. Now with your chart, to find out who would be a good match for you you would have to look at your 7th house, Sun, Moon and Ascendant signs. Plus a few other things. But you really need a chart for accuracy.

I really do not feel that air signs always need air signs, or earth need earth ect. Its really all about personal needs based on specific chart indications. I am enganged to a May 22nd gemini man. His sun is 1 degree of gemini. My sun is 28 degrees of Capricorn which is a trine. Even though I'm earth and he is air, our suns are in aspect so we really get eachother. Of course it helps that my venus in capricorn and my sun fall into his 8th house. The 8th house has alot to do with sex and I have found is just as important as the 7th in romantic relationships. Every person is different and we all have unique needs based on our specific charts. You must understand these things about your own chart if you want to use astrology to deduce what kind of partner would be best for you.

the date given is a bit awkard,
if you can  specific down to birth minute would give a much better result

If you are looking for a partner you better find who can understand you very well because your mind is always changing.