Use a blender to purée the strawberries, lemon juice, and your choice of sweetener. Divide among popsicle moulds and freeze (mine took about 4 hours).
To make the chocolate coating, use a short and narrow glass that is wide enough for you to dip in your popsicles. If the glass is too wide and you'll have to spend time dunking both sides of the popsicle in and you may drop some melted strawberry purée in and cause the chocolate to seize. Microwave for about 30 seconds, stir well, then another 15 seconds (the chocolate chips may not look melted yet). Stir until chips are fully melted and let the chocolate cool until it's just barely warm, stirring occasionally.
Release the popsicles from the mould and work quickly to dip them all in the chocolate before they start to melt. You may want to keep half of them in the freezer while you work with the first half to be safe.
Dip them in the chocolate, shake off a little but of the excess, and place on a lined sheet. Pop them back in the freezer to set the chocolate. Enjoy!
If you're not going to eat these within the next couple days, store them in an airtight container and separate the popsicles with parchment paper. This prevents them from freezer burn from sticking together.