Explore the various options here:

https://publicdomainvectors.org/svg-generator.php

Also enjoy these ...

SVG Stripe Generator

https://svg-stripe-generator.web.app/

SVG Dashed Lines Generator

https://github.com/Gigacore/SVG-Dashed-Lines-Generator

SVGeez

https://www.svgeez.com/

SVGBackgrounds

https://www.svgbackgrounds.com/ 

Pattern Fills

http://iros.github.io/patternfills/

Pattern Ninja

https://patterninja.com/

Get Waves

https://getwaves.io/

Blobmaker

https://www.blobmaker.app/

SVG Background Pattern Generator

https://codepen.io/brandonbrule/pen/yNJBbo

SVG Pattern Generator

https://doodad.dev/pattern-generator/

PatternPad

https://patternpad.com/

Plain Pattern

http://www.kennethcachia.com/plain-pattern/

Hero Patterns

https://www.heropatterns.com/

Patternizer

https://patternizer.com/yy47

Trainglify Generator

https://trianglify.io/

SVG 3D Builder

https://github.com/captainwz/svg-3d-builder

DotGrid

https://hundredrabbits.itch.io/dotgrid

SVGInject

https://github.com/iconfu/svg-inject

SVG Colorizer

https://www.iconshock.com/svg-color/

SVG Filter

https://yoksel.github.io/svg-filters/

SVG Gradient Map Filter

https://yoksel.github.io/svg-gradient-map/

Poly Generator

https://codepen.io/winkerVSbecks/full/wrZQQm/

Svgurt

https://svgurt.com/

Free SVG Maps

https://www.amcharts.com/svg-maps/

Circulus

https://www.sarasoueidan.com/tools/circulus/

Shapeshifter

https://shapeshifter.design/

Clip Path

http://www.cssplant.com/clip-path-generator