I make my own extracts, but do not do almond as DH is allergic to almonds. There are many recipes/tutorials available on Pinterest.
My standard, that I use most often, is of course vanilla. I always have that going. Before the beans took a huge price jump, that is what I gave for Christmas gifts to lots of people. Gift exchange at guild holiday party, the people i worked with (have since retired) that you want to give a little something to. Most everyone can use extracts!