Los Van Van's music influenced the development of Timba. Van Van play Songo, Timba has Songo elements in it.
Jose Luis Cortez (NG La Banda) who are credited with the development (not creation) of Timba, formed a style which blended the complexities of Irakere's music, with the dance popularity of Juan Formell's (Los Van Van) music.
So while Van Van do not play Timba, their music has close ties to and many similarities to Timba, while at the same time having many elements which are not typical of Timba.
There are different types of Timba also, for example Bamboleo's sound and style is very different to Charanga Habanera's style. Klimax's sound is comparable to the sound of NG, as Pupy is comparable to Van Van though Pupy draws in more Timba influenced elements into his Songo origins.
Bamboleo's style is similar to the style of Azucar Negra and so on. So within Timba there are many different grades of sound.
So while I love Timba and eat it breathe it dream it, there are some Timba artists which I dont really like and dont listen to.
Same as one would say RnB for example. Different style sof RnB within RnB, etc.
One thing about some of the timba artists, the start of the tracks alot of the time will be somewhat slow & mellow, bordering on dull, before 'changing gears' and heading into different levels of pace within the same song. Dont write off a song by just hearing the first few bars.
I've been into Timba since about 1995 when one of my friends (also a conguero) came back from Cuba with all the latest recordings of the time, the style (which was new to me) totally blew me away.
Nowadays I just cant listen to straighty salsa, it just sounds plain and boring, I just cant do it. I refuse to play it also, often turning down 'fill in' gigs I get offered to play with some of these bands.
Cuban music flourished here during the 60's, 70's and 80's and continues to do so to this day, so today Cuban music over powers anything out of the US (salsa), there are more Cuban themed music nights than 'salsa' type nights.
Anyway, back on topic

I'd suggest you seek out recordings by the following artists:
BamboleoAzucar Negra
Klimax
NG La Banda
Pachito Alonso Y Su Kini Kini
Havana D'Primera
Haila Mompie - former singer for Bamboleo & Azucar Negra.
Son del Indio - Former singer from Manolito Y Su Trabuco. Great band he's got now, amazingly tight and strong, live footage on youtube.
Pupy y Los Que Son Son
Maykel Blanco
Paulito Y Su FG / Paulito Y Su Elite
Manolito Y Su TrabucoManolin - El Medico de la Salsa (early stuff before he went to the US and went all soft and pop) his live in the US recording 'EL PUENTE' is fokin great. (Tomasito Cruz on congas.) 2 CD package.
Tirso Duarte
Combinacion de La Habana
Charanga Habanera
Charanga Forever - Original members from Charanga Habanera which split with David Calzado (director) and reformed under CharangaForever.
Alain Daniel some of his recordings (newer) are more Reggaeton based, but his Timba stuff is really good.
Pedrito Calvo y La Justicia - Former Van Van singer.
Osvaldo Chacon Former Bamboleo singer. I got to tour with him for 3 months during his stay in Aus. Real smoothe & funky.
Then there are bands and artists that while are not Timba, also fall into that same category.. the likes of Van Van etc, for these you can check out:
Los Van Van - Songo
Soneros All Stars - Changui
Dan Den - salsa Cubana
Elio Reve - Also search Reve y Su Changui, Orquesta Reve and several others, keyword being 'Reve' - Changui
Elito Reve (son of Elio) - Changui
Maraca - Charanga/Latin Jazz/Timba/Fusion
Cubanismo - modern Son/Salsa Cubana
There are many many more, but that should keep you busy for a while.

Keep in mind many of these artists have produced many recordings, some may not be your taste, while others becoming amongst your favourites.
Im off to Cuba in a few weeks, minimum 2 month stay, not sure when I will be back though, I might be staying alot longer - guess I'll see how things pan out.