Since my keyboard is smaller I don’t have the end key any suggestions?

What are you using it for in the engine? Perhaps you could rebind it in the Editor Settings?

Besides that, the small factor keyboards - the 75% and 60% layouts often come with an FN key which combos with another existing key to simulate the otherwise missing functionality. Fancier keyboards can also do it through their software, e.g. macros.

Would this work?

If you have a mouse with too many buttons, you could bind End to one of its buttons instead.

And Windows can emulate keyboard:

Handy if you have tendency to spill beverages all over the desk.