Rakib

To avoid plugin territory warning for CPT and Meta Boxes, This is a great choice for you. Violet Custom Post Meta adds necessary CPT, Meta, Texonomy to develop awesome portfolio theme.
Post Types:
<ul>
<li>services</li>
<li>skill</li>
<li>portfolio</li>
<li>testimonial</li>
<li>team</li>
<li>partner</li>
</ul>
Note that this plugin function can be modify as your choice by filter Hooks.
Hook Lists :
<pre><code>vcpm_{post_type}_params //to modify post type args.
vcpm_portfolio_category_params //to modify portfolio texonomy.
vcpm_meta_fields_{post_type} //provides ability to add, remove, modify meta fields.
vcpm_meta_box //Provides ability to create, delete and modify meta box.
vcpm_meta_fields_control //Fields styte, presentation can be modify.
</code></pre>

Violet Custom Post Meta

Plugin for Theme developers, Who wants to build portfolio themes rapidly.

faaiq

Best plugin for creating custom post type and fields. Very user friendly You will love it use it and see the magic.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/2BbcTIsFcuM?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Simple Custom post type custom field creator.
<ul>
<li>
Creates New Content Type in Just Two clicks
</li>
<li>
Loads custum post type data in template file using one function
$data = simple_cck::get_post_data($post_id)
</li>
<li>
Support Basic Fields Like textfield, Textarea, Html Editor, Radio buttons, Checkboxes and Select
</li>
<li>
Supports Some special fields like Date, Image and File,
</li>
<li>
Supports Advanced fields like Post Refrence , User Reference and Taxonomy.
</li>
<li>
Supports Advanced fields like Post Refrence and User Reference.
</li>
<li>
Set Meta title, Meta Description and meta keyowrds fields for custom content type.
</li>
<li>
Manage defaults fields for custom post type like (title ,editor, author, thumbnail, excerpt, comments,revisions)
</li>
<li>
Multiple content types can be arranged under a single parent menu at admin section.
</li>
<li>
jQuery Calender for date fields
</li>
<li>
Set Different thumbnail size of each image.
</li>
<li>
Alt tag fields for image.
</li>
<li>
Create multiple mataboxes of grouping fields.
</li>
<li>
Arrage metabox by drag n drop.
</li>
<li>
Arrage fields within metabox by drag & drop
</li>
<li>
Drag n drop interface to arrange content type in Admin menu.
</li>
</ul>
<h3>Arbitrary section</h3>

Simple Custom post type custom field

Best plugin for creating custom post type and fields. Very user friendly You will love it use it and see the magic.

Violet Custom Post Meta vs Simple Custom post type custom field