Aside from what Naki.ata already provided, you can also check:
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who has plenty of SFW scenes, but unfortunately they are passworded (nanaibu) so you have to download them before you'll be able to preview them.
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who has plenty of SFW scenes for both
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and
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.
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who has a nice mix of various scenes, both fantasy and more realistic.
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who has a mix of SFW and NSFW scenes, but the latter ones can be tamed if you will turn the clothing on.
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who generally only has very few SFW scenes, but whose NSFW scenes can again be turned safe by turning clothing on and which IMHO work very well for showing off a character.