Some London Parish Registers for just a few years 

What I have is Set 1 of London Compendium from -  http://www.rod-neep.co.uk/acatalog/lnd-church.html 
Rod has now retired and closed the business

These are The Harleian Society transcriptions of the registers - not the actual registers

Now these are separate files for each church and within a church there are separate files for blocks of years. It is not easy just to check for a name to see if they are there. If you have found a record indicating a church within this list - then possibly something may be found but otherwise looking is a long hard grind. Usually each file has a name and a local index BUT some haven't. 

Pallot and Boyd's marriage indexes are good for this - for example on Pallot's I found 
Lankshear, Lankshear  Marriage Date: 1788 Parish: ST. GEORGE HANOVER SQUARE
Checking the CD this was  found as a marriage in 1808 but it was in the Volume for 1788 - 1808 John Lankshear wedding Margaret Pearson
The double surname is because Margaret appears in CD index under Lankshear and Pearson
Buy why are first names not in Pallot's

Anyhow this is list of churches and years and whether only marriages

All these require manual checking - PDF are not enabled for Adobe search

St Antholin, Budge Row & St John Baptist, Wallbrook-London 

St Benedict & St Peter, Paul's Wharf, London 
Volume one contains baptisms from 1619-1837. Volume two contains marriages in St Benedict's from 1619-1730, Volume three has marriages in St Benedict's 1731-1837 and for St Peter 1607-1834.
The reason that there are so many marriages, especially between 1719 and 1754, is that these churches were very close to The Faculty Offfice where marriage licences were issued, so there are a huge number of people from all over the country marrying here.
No burials


Charterhouse Chapel

Christ Church, Newgate, Greyfriars - Baptisms, Marriages Burials 1538-1753

St Dionis, Backchurch, London, 1538-1754

St George, Hanover Square London- Marriage Registers 1725-1837 
    (Baptism etc are said to be at Westminster http://www.stgeorgeshanoversquare.org/Churcharchives.htm

• St George, Hanover Square
• Four volumes with separate index for each volume
• 1725-1787
• 1788-1809 - see comments above re date being shown as 1788 in Pallots
• 1810-1823 
• 1824-1837

St George's Chapel, Mayfair 1740-1754
St Helen's Bishopsgate 1575-1837
St James, Clerkenwell 1551-1754
Kensington 1539-1675
St Martin in the Fields, London 1550-1619
St Martin Outwich 1670-1873
St Mary le Bone, Middlesex and Oxford Chapel, Vere Street - Marriage Registers 1668-1812 many volumes to look through
St Mary, Aldermary, London, 1558-1754
St Michael, Cornhill 1546-1754
St Olave, Hart St, London 1563-1700
St Paul's Cathedral
St Paul's Church, Covent Garden, London

- CD has 2 Volumes - Vol I - Christenings 1653 to 1752 - Vol II Christenings 1752 to 1837

St Peter's, Cornhill, London
St Stephen's, Walbrook and St Benet, Sherehog, London - 16xx to 1837
St Thomas the Apostle, London 1558-1754
St Vedast & St Michael le Quern, London