I like these because they are cute and colourful
Ice Cream/Yoghurt Store Logos
200+ Logistics Delivery Line Icons. Download here: http://graphicriver.net/item/200-logistics-delivery-line-icons/16565816?ref=ksioks
Colored Line Icons (SVG, PNG) | Codrops
375+ Hotel Line Icons. Download here: http://graphicriver.net/item/375-hotel-line-icons/16565759?ref=ksioks
Showcase and discover creative work on the world's leading online platform for creative industries.
#Valentine's Day Flat Line #Icons Mehr
55 SEO Line Icons #digital marketing icon #technology icon #800x1500 • Click here to download ! http://graphicriver.net/item/55-seo-line-icons/16148937?ref=pxcr
Fantastic line icon set! Not free, but lots of variety and really high quality designs. It would be worth the price for certain projects!
IconAlone Line icons pack by popcic on @creativemarket
Set of huge space universe illustration. Space infographic. Space icon. Space thin lines background. Space flat elements. Space label. Space concept design. Outer space rocket flying into solar system