Our community friend, cov, has shared an excellent link containing a thorough list of cohesive phrases (see below). These phrases can be used in your speaking and writing and will do a lot to make you sound more fluent. To do this, first try simplifying your sentences. Don’t try to cram too many ideas into each sentence. Link your ideas with the phrases found in this list and instantly your thoughts will sound much more natural. Of course, the key to doing this well is practice. Commit these phrases to memory so you can quickly access them when you need them.
Here is the link (thank you again, cov):