I'm in the same boat. I like it sweet. I have been using sucralose (ez sweets yellow cap) at 1 drop per 3 ml. Although it makes my juice sweet enough for me, reading about the chemistry and possible ill effects of sucralose made me reconsider using it.
Ethyl maltol is unlikely to do it for you. Some of us, including myself, just don't register it as sweet. I'm betting you are like me in that regard. But, it's cheap and worth a try. There is an alcohol free liquid stevia available. The grocery store powder contains binders and may not vape as well. There is also erythritol and xylitol.
Of all these, stevia seems to be the safest and sucralose by far the unhealthiest. Try to avoid supermarket versions of any artificial sweetener. You should be able to find them all at heath food stores or Amazon.
I have them all but haven't done enough experimentation yet. You may find the best results from a combination, however, I don't think you will ever find that honey smooth experience you are looking for without major clogging problems. If you do please message me. I currently have about 150 ml of juice made with sucralose that I can't get myself to dump. After that is gone, so is ez sweetz. You may want to do some health related research regarding sucralose so you can make well informed choices about long term use