user16988: I was just wondering how many different types of meditation techniques did Buddha teach? 
I know the below
Anapana, 
Vipassana, 
Charnal Ground, 
Metta Bhavana,
I am looking for a list of meditations for my research purpose.

user2282: 
Anapana, Vipassana, 32 body parts meditation, Metta Bhavana,
I am looking for a list of meditations for my research purpose.

They're parts of what's called the Kammatthana, the Forty objects of meditation as classified in the Visuddhimagga. The wiki page also gives a pretty good summary about them.

user13709: The Buddha described practice in several different ways. For example:
The phrase "practice like this" occurs in at least 26 suttas: sn54.10 sn54.1 sn54.13 an10.29 sn54.9 sn54.8 sn54.7 sn54.6 sn54.5 sn54.4 sn54.3 sn54.20 an3.60    
The phrase "practice the meditation" occurs in at least 2 suttas: MN151 MN121
The phrase "practicing the right way" occurs in at least 1 sutta: MN139
The phrase "here we will" occurs in at least 1 sutta: MN8
The phrase "immersion that does not lean forward" occurs in at least 1 sutta: AN9.37
The phrase "with teeth clenched" occurs in at least 4 suttas: MN20 MN100 MN36 MN85
There are no doubt many others...to find them please read the suttas. That is what researchers themselves do.

16988: <p>I was just wondering how many different types of meditation techniques did Buddha teach? </p>

<p>I know the below</p>

<p>Anapana, 
Vipassana, 
Charnal Ground, 
Metta Bhavana,</p>

<p>I am looking for a list of meditations for my research purpose.</p>
 2282: <blockquote>
<p>Anapana, Vipassana, 32 body parts meditation, Metta Bhavana,</p>
<p>I am looking for a list of meditations for my research purpose.</p>
</blockquote>
<p>They're parts of what's called the Kammatthana, the Forty objects of meditation as classified in the <a href="https://www.accesstoinsight.org/lib/authors/nanamoli/PathofPurification2011.pdf" rel="nofollow noreferrer">Visuddhimagga</a>. The <a href="https://en.wikipedia.org/wiki/Kamma%E1%B9%AD%E1%B9%ADh%C4%81na" rel="nofollow noreferrer">wiki page</a> also gives a pretty good summary about them.</p>
 13709: <p>The Buddha described practice in several different ways. For example:</p>

<p>The phrase "practice like this" occurs in at least 26 suttas: sn54.10 sn54.1 sn54.13 an10.29 sn54.9 sn54.8 sn54.7 sn54.6 sn54.5 sn54.4 sn54.3 sn54.20 an3.60    </p>

<p>The phrase "practice the meditation" occurs in at least 2 suttas: MN151 MN121</p>

<p>The phrase "practicing the right way" occurs in at least 1 sutta: MN139</p>

<p>The phrase "here we will" occurs in at least 1 sutta: MN8</p>

<p>The phrase "immersion that does not lean forward" occurs in at least 1 sutta: AN9.37</p>

<p>The phrase "with teeth clenched" occurs in at least 4 suttas: MN20 MN100 MN36 MN85</p>

<p>There are no doubt many others...to find them please read the suttas. That is what researchers themselves do.</p>
