>>3726148EF-S 10-18mm easily one of the best wide angle lenses
EF 50mm STM for portrait its very sharp and 80mm equivalent on APSC
>>3726335>>3726337both of these are great the EF-S 18-55 STM is very good especially for a cheap ass kit lens
For astro you would be better pushing the ISO to 1600 and doing a 15s exposure stars would be much sharper
like this which was also shot on the 18-55 with no tracking