Thanks for following up with some more detail! @Minnie it sounds like it is definitely possible to use these with your trekking poles, it just may take a little modification with some electrical tape or something similar. If you're willing to do that then you should be good to go!
Based on what I could see, it looks like Leki is the only brand we have carried with this style of sloping rubber tip. Which makes sense, as they are technically designed that way for Nordic Walking, which is a popular 'off season' activity in Germany, where Leki is based.