Scenario:
Create a checkbox-group in LWC which will display list of Object with CHECK-BOX selection in your ORG.
Solution:
Check combobox example in my previous post (LWC combobox Example:) and create LWC component and it's controller class same as describe on that post. Once done just modify the full .html file with below line of codes,
<template>
<lightning-card title="checkbox-group Example">
<p>Object selection are:: {selectedObjValue}</p>
<br/>
<lightning-checkbox-group name="objects"
label="Please Select The Object(s)."
options={objectOptions}
value={selectedObjValue}
onchange={handleObjectChange}>
</lightning-checkbox-group>
</lightning-card>
</template>
OUTPUT: