You can create a contact page,
You can create a page to which you can add a contact form. If you create a page without any content, then the contact form is all that will appear on the page. If you add content to your page, then your content will show above the contact form. You can include information about how customers can reach you, such as by phone, by mail, or in person.
Click Add page.
In the Title box, type a title for your contact page, such as Contact us or Get in touch.
In the Content box, type any text that you want to appear above the contact form. You can leave this section blank.
Some information that you might want to add in the Content box:
In the Template section, choose page.contact from the Template suffix drop-down menu:
Using native shopify contact form, you can receive each submissions in separate emails to your store email. But if you specifically want to list each submission in shopify admin then you need to use third party contact form app.
Take a look one such contact form app. See if this helps.
This is PageFly - a Free Landing Page Builder for more than 80000 Shopify merchants, I would love to provide a solution to your question.
You can check the Shopify help document about creating a contact page to have the contact form https://help.shopify.com/en/manual/online-store/os/using-themes/change-the-layout/add-contact-form
Or to do more customization for the form, you can try PageFly - page builder app.
In PageFly, there are 2 forms: contact and customer form. With the contact form, customer submission will be sent to your email; with the customer form, the data are sent to the Customers section in the Shopify admin.
Besides that, PageFly (with 24/7 support) integrates Klaviyo, MailChimp to implement Email marketing campaigns.
Let me know if you have any further questions. You can give it a like if you feel helpful.